Help ASAP!
Which statement is true because of Newton's second law?

a.
When the net force on an object increases, the object's acceleration decreases.


b.
When the net force on an object decreases, the acceleration doesn't change.

c.
When the net force on an object decreases, the object's acceleration increases.


d.
When the net force on an object decreases, the object's acceleration decreases.

The reproductive system of a frog is responsible for the production, The reproductive system of a frog is similar to the human reproductive system in that both are responsible for producing and releasing eggs and sperm.

The reproductive system of a frog is responsible for the production, maturation, and release of eggs and sperm, which are used for sexual reproduction. The female frog has two ovaries which produce eggs, while the male frog has two testes which produce sperm. The eggs are fertilized by the sperm outside of the body, usually in water.

The reproductive system of a frog is similar to the human reproductive system in that both are responsible for producing and releasing eggs and sperm. However, there are also some key differences. For example, in frogs, fertilization occurs outside of the body, while in humans, it occurs inside the female's body. Additionally, frogs have external fertilization, whereas humans have internal fertilization.

Another difference is that in frogs, the eggs are laid and fertilized in water, while in humans the eggs are fertilized inside the female's body and the offspring develops inside the uterus.

Overall, although the reproductive system of a frog and a human have some similarities, they are also quite different in terms of their anatomy and the way reproduction occurs.

Learn more about reproduction here: brainly.com/question/14329745

#SPJ4

An object is moving in simple harmonic motion. Its current position is 0.6 m to the right of its equilibrium. The object will move 0.24 m further to the right before it stops momentarily and then starts to move back to the left.

The position function of  simple harmonic motion can be modeled by:

x(t) = A sin (ωt)

Where:

A = amplitude

ω = angular frequency

t = time

Amplitude is the farthest displacement before the object move back to the left or right.

Substitute x(t) = 0.6

0.6  = A sin (ωt)

Take the derivative:

v(t) =  Aω cos(ωt)

Take the derivative again:

a(t) = v(t)' = -Aω² sin(ωt)

-8.40 = - Aω² sin(ωt)

x(t) / a(t) = A sin(ωt) / ( -Aω² sin(ωt))

0.60 / (-8.40)  = -1 / ω²

ω² = 8.4/0.6 = 14

ω = 3.74 rad/s  

x(t) / v(t) = A sin(ωt) / Aω cos(ωt)

0.6 / 2.2 = tan(3.74t) /3.74

tan(3.74t) = 1.02

3.74 t = 0.795

t = 0.212 s

x(0.212) = A sin(3.74 x 0.212)

A = 0.84 m

The farthest position from the equilibrium is 0.84 m, hence the object will move 0.84 - 0.6 = 0.24 meters farther before it moves back to the left.

Your question is incomplete, most likely it was:

You are watching an object that is moving in shm. When the object is displaced 0. 600 m to the right of its equilibrium position, it has a velocity of 2. 20m/s to the right and an acceleration of 8. 40m/s2 to the left. How much farther from this point will the object move before it stops momentarily and then starts to move back to the left?

Learn more about harmonic motion here:

https://brainly.com/question/20885248

#SPJ4

The electric potential is taken from infinity because the fraction 1/x is zero only when x equals, as the fraction tends towards zero and the denominator tends towards infinity potential.

is proportional to 1/r2 so no matter how far you are from the field there is still some influence from it that decreases exponentially with distance (radius). Zero is assumed to be an infinitely large distance from the center of the Earth, resulting in negative values for Gravitational Potential s proportional to 1/r2, implying that no matter how far you are from the field, there is still some influence from it, which decreases exponentially with distance (radius). The electric potential at the reference location is, by definition, zero units. In most cases, the reference point as the fraction tends towards zero and the denominator tends towards infinity potential.

learn more about Zero  here:

https://brainly.com/question/28146711

#SPJ4

Answer:

Explanation:

The resultant force can be found by using the law of cosines. The magnitude of the resultant force (|R|) is given by the square root of (f1^2 + f2^2 - 2f1f2*cos(theta)), where theta is the angle between the two forces.

In this case, |R| = sqrt(30^2 + 40^2 - 23040cos(30)) = sqrt(900 + 1600 - 1200(sqrt(3)/2)) = sqrt(2500 - 1200*(sqrt(3)/2)) = sqrt(2500 - 600sqrt(3)) = 50sqrt(3) N

In a pendulum, the acceleration is at the greatest rate at the point of greatest displacement from the equilibrium or the point of highest amplitude.

A pendulum is a weight suspended from a fixed point that swings back and forth due to the force of gravity. The most common form of a pendulum is a weight, or bob, hanging from a cord or rod. When the pendulum is given an initial push, it will continue to swing back and forth due to the force of gravity acting on the bob. The motion of a pendulum is known as oscillation.

At the highest point of the swing, the velocity of the pendulum is zero and the acceleration is at its maximum as the pendulum changes direction. At this point, the acceleration is directed towards the center of oscillation and is directed towards the equilibrium position. As the pendulum swings back and forth, the acceleration decreases as the velocity of the pendulum increases and reaches zero again at the highest point of the swing.

It's also worth noting that, the acceleration of a pendulum is not constant, but it is changing as the pendulum swings, and it's greatest at the point of the highest amplitude and it is directed towards the center of oscillation.

Therefore, the acceleration is at the greatest rate at the point of highest amplitude.

Learn more about Pendulum here:

https://brainly.com/question/29275702

#SPJ4

Answer:

7-12-99

Explanation:

Voltage can be thought of as the pressure pushing charges along a conductor, while the electrical resistance of a conductor is a measure of how difficult it is to push the charges along. Using the flow analogy, electrical resistance is similar to friction. For water flowing through a pipe, a long narrow pipe provides more resistance to the flow than does a short fat pipe. The same applies for flowing currents: long thin wires provide more resistance than do short thick wires.

The resistance (R) of a material depends on its length, cross-sectional area, and the resistivity (the Greek letter rho), a number that depends on the material: The resistivity and conductivity are inversely related. Good conductors have low resistivity, while poor conductors (insulators) have resistivities that can be 20 orders of magnitude larger. 

Resistance also depends on temperature, usually increasing as the temperature increases. For reasonably small changes in temperature, the change in resistivity, and therefore the change in resistance, is proportional to the temperature change. This is reflected in the equations:At low temperatures some materials, known as superconductors, have no resistance at all. Resistance in wires produces a loss of energy (usually in the form of heat), so materials with no resistance produce no energy loss when currents pass through them.

Ohm's Law

In many materials, the voltage and resistance are connected by Ohm's Law: Ohm's Law : V = IR. The connection between voltage and resistance can be more complicated in some materials.These materials are called non-ohmic. We'll focus mainly on ohmic materials for now, those obeying Ohm's Law.

Example

A copper wire has a length of 160 m and a diameter of 1.00 mm. If the wire is connected to a 1.5-volt battery, how much current flows through the wire?

The current can be found from Ohm's Law, V = IR.

The V is the battery voltage, so if R can be determined then the current can be calculated. The first step, then, is to find the resistance of the wire:L is the length, 1.60 m. The resistivity can be found from the table on page 535 in the textbook.

The area is the cross-sectional area of the wire. This can be calculated using:The resistance of the wire is then:

The current can now be found from:

Ohm's Law:I = V / R = 1.5 / 3.5 = 0.428 A

A sextant would be an instrument employed to measure latitude through measuring their position of the stars.

A sextant is a tool for determining the distance between two visible objects. A sextant can be used to measure both horizontal as well as vertical angles. It has reflectors that also are placed so that the observer may see both items at the same time. It is primarily used for navigation on marine routes.

Sextant Principle: When a ray of light gets reflected through two mirrors in succession within the same plane, the angle here between the incident and reflected rays is two times that angle between the mirrors.

Sextants are classified as follows:

Sextants are classified into three types:

1. Sextant Nautical

2. Sextant in a box

3. Sextant Sounding

To know more about sextant here

https://brainly.com/question/20712576

#SPJ4

If the horizontal speed of ball is 27 m/s and time taken to reach the ground is 2.2 s then according to equation of motion height of tower will be 23.71 m

The bullet appears to be traveling straight forward without changing directions, according to the horizontal speed. The moment the projectile is launched, no net forces are exerted in a horizontal direction. As a result of zero acceleration, the projectile's horizontally speed remains unchanged throughout the trajectory motion.

Given-

Horizontal speed = 27 m/s

Time to reach the ground = 2.2 s

For Y axis -

Initial velocity (u) = 0 m/s

By using the equation of motion for horizontal motion

v = u + g t

Where 'g' is acceleration due to gravity whose value is 9.8 m/s

v = 0 + (-9.8 × 2.2)

v = -21.56 m/s

Here negative sign represent downward motion.

Height of tower is measured by using the equation-

h = u * t + 1/2 × g * t²

h = 0 + 1/2 × (9.8) × (2.2)²

h = 1/2 × (9.8) × 4.84

h = 23.71 m

To know more about horizontal speed visit :

https://brainly.com/question/20522350

#SPJ1

You would need to cycle 1 hour 50 minute  to work for 200 g chips.

Energy is measured in calories. Calories in nutrition relate to the energy that humans obtain from the food and liquids they consume as well as the energy they expend when engaging in physical activity.

On every food package, the nutritional information includes a list of calories.

200 grams of potato chips have 1074 calories.

Calorie burn on 30 minute Cycling is   298 calories.

So, to burn 1074 calories, you have to cycle = (1074 ÷ 293) × 30 minute

= 110 minute

= 1 hour 50 minute.

Hence,  you would need to cycle 1 hour 50 minute  to work for 200 g chips.

Learn more about calories here:

https://brainly.com/question/22374134

#SPJ1

According to the graph, the average speed of the time interval from 1 to 3 seconds is 20 m/s.

In physics, the interval is a term used to describe distances in space and time. Time interval is the amount of time between two specific points in time. An example would be: "The time interval between three o'clock and four o'clock is one hour."

In the graph, the time interval from 1 to 3 seconds is 2 seconds.

In this case, the change in position is about = 40 m

then the average speed is:

v = change in position/time

v = 40/2

v = 20m/s

So, the average speed is 20 m/s.

This question is accompanied by a graphic.

Learn more about the average speed at https://brainly.com/question/4931057

#SPJ4

Option (a) is a good choice. A scientific theory must pass a test to prove its veracity. A scientific hypothesis in science is a theory that provides a tentative explanation for a phenomenon.

A specific set of natural world phenomena. The two essential elements of a scientific hypothesis are falsifiability and testability. They are represented by a "If...then" statement that summarises the idea and by the ability to be verified or refuted through experimentation and observation. A hypothesis in science is a theory that provides a tentative explanation for one or a small number of observable events in the natural world. The two primary attributes of a scientific theory are falsifiability and testability.

Learn more about scientific hypothesis here

https://brainly.com/question/14074757

#SPJ4

The time it takes for a bus that has a velocity of 10m/s to go a distance of 1475m is 147.5s.

Speed is the rate of motion or action, specifically the magnitude of the velocity i.e. the rate distance traversed in a given time.

The speed of a moving object can be calculated by dividing the distance moved by the time taken to travel the distance as follows:

Speed = distance ÷ time

According to this question, a bus that has a velocity of 10m/s travels a distance of 1,475m. The time it takes the bus can be calculated as follows:

10 = 1475/t

t = 147.5seconds

Learn more about speed at: https://brainly.com/question/4978052

#SPJ1

ATP and NADPH serve as the chemical fuel for the light independent processes, often referred to as the Calvin cycle.

Adenosine triphosphate, also known as ATP, is a highly energetic molecule that both stores and releases energy. It is created by the process of photophosphorylation during the light-dependent activities of photosynthesis. Another high-energy molecule formed during the light-dependent processes is NADPH, or nicotinamide adenine dinucleotide phosphate. This happens as a result of non-cyclic electron transport.

The light independent processes that transform carbon dioxide into glucose and other sugars are powered by both ATP and NADPH. An enzyme known as Rubisco uses the energy from these molecules to drive the fixation of carbon dioxide, turning it into a carbohydrate.

For such more question on Adenosine triphosphate.

https://brainly.com/question/897553

#SPJ4

A driver ignores the stop sign and continues driving west at constant speed ,is true.

The complete question is A driver ignores the stop sign and continues driving west at constant speed.t/false

To learn more about constant speed refer to:

https://brainly.com/question/21071572

#SPJ4

A video-disc player that is not playing still uses 6.0 W of power and is plugged into a standard 130 V outlet. So the electric current it has is 0.04 Amps

According to international units, the formula for calculating electric power is P = V x I, where P is electric power (W), V is electric voltage (V), and I is electric current (A).  So, to calculate the current on the video disc player is:

I = P/V

In terms of the electric power is 6.0 W and the electric voltage is 130 V, then the electric current is:

I = P/V

I = 6.0W/130V

I = 0.04 Amps

Learn more about the formula of electric current at https://brainly.com/question/24858512.

#SPJ4

The link between photosynthesis as well as combustion would be that photosynthesis produces oxygen, which would be utilized in combustion.

Complete oxidation using simple hydrocarbon fuels produces carbon dioxide (C02) from every molecule of carbon as well as water (H20) from either the hydrogen, i.e., given a CnHm hydrocarbon fuel,

Despite the idealised scenario of complete combustion, accounting for all species involved in combustion exhaust entails more than just measuring CO2 as well as H20 levels. Because fuels were burned in air instead of just pure oxygen, nitrogen in the air could participate inside the combustion process and cause nitrogen oxide to be produced.

Furthermore, many fuels contain components besides the carbon, which may be changed during burning. Finally, because combustion cannot always be complete, effluent gases contain unburned together with partially burned materials in additional to CO2 as well as H20.

To know more about combustion here

https://brainly.com/question/13251946

#SPJ4

No machine operates with 100% efficiency, and this relates to the Law of Conservation of Energy as the efficient machines require some of the energy input to operate, and some of the energy is converted into heat by friction too, so both options C and D are correct.

According to this rule, energy only changes form, and never 100% of the energy is utilized by anything, whether by living forms or machines, because some of the energy's form is lost in the process.

Hence, no machine operates with 100% efficiency, and this relates to the Law of Conservation of Energy as the efficient machines require some of the energy input to operate, and some of the energy is converted into heat by friction too, so both options C and D are correct.

Learn more about energy conservation here.

https://brainly.com/question/13949051

#SPJ1

Moreover, some scientists speculate that our universe is not the only universe that exists, but the only one from which evidence can be collected. This idea is called the big bang theory.

At the big bang, astronomers explain the beginning of the universe. The idea is the universe started as a single point, expanded to its current size, was stretched, and is still expanding. According to the Big Bang theory, the observable expansion of the universe began with the explosion of a single particle at a specific point in time. Georges Lemaître (1894–1966), was a Belgian cosmologist, Catholic priest, and father of the Big Bang theory.

Learn more about the big bang theory in

https://brainly.com/question/1933033

#SPJ4

When calculating the torque, the lever arm is defined as the perpendicular distance from the axis of rotation to the line of action of the force.

The twisting force that propels an object's rotation around an axis is measured by torque. It is computed by dividing the force exerted on an item by the lever arm, or perpendicular distance between the application point and the axis of rotation. The moment arm is another name for this distance. The standard units for measuring torque are (Nm). It is crucial to comprehend torque and how it is calculated in disciplines like engineering and physics.

If you need learn more about torque, click here

https://brainly.com/question/28220969?referrer=searchResults

#SPJ4

Answer:

It decreases

Explanation:

The force decreases because its getting pulled apart

Answer:

Approximately [tex]11\; {\rm m}[/tex], assuming that gravitational acceleration is [tex]g = 9.81\; {\rm m\cdot s^{-2}}[/tex] and that air resistance is negligible.

Explanation:

The question is asking for the vertical displacement, [tex]x_{y}[/tex].

Under the assumptions, acceleration in the vertical direction would be [tex]a_{y} = -g = (-9.81)\; {\rm m\cdot s^{-2}}[/tex].

Since the projectile is launched horizontally, initial vertical velocity would be zero: [tex]u_{y} = 0\; {\rm m\cdot s^{-1}}[/tex].

It is given that the projectile is in this motion for [tex]t = 2.2\; {\rm s}[/tex]. Apply the SUVAT equation [tex]x = (1/2)\, a\, t^{2} + u\, t[/tex] and solve for the vertical displacement:

[tex]\begin{aligned}x_{y} &= \frac{1}{2}\, a_{y}\, t^{2} + u_{y}\, t \\ &= \frac{1}{2}\, ((-9.81)\; {\rm m\cdot s^{-2}})\, (2.2\; {\rm s})^{2} + (0\; {\rm m\cdot s^{-1}})\, (2.2\; {\rm s}) \\ &= \frac{(-9.81)\, (2.2)^{2}}{2}\; {\rm m} \\ &\approx (-11)\; {\rm m} \end{aligned}[/tex].

Note that the value of vertical displacement is negative since the projectile landed below where it was launched. The height of this cliff would be approximately [tex]11\; {\rm m}[/tex].

The work done by the person will be 40 joules and the power of the person will be  5.71 watts.

In order to calculate the amount of work done by a person who exerts a 5 newton force that moves a 12 kg box 8 meters in 7 seconds, we must calculate the power of the person.

To calculate the work done, the following equation can be used: work (in joules) = force (in newtons) x distance (in meters). In this case, the work done is 5 x 8 = 40 joules.

To calculate the power, the following equation can be used: power (in watts) = work (in joules) / time (in seconds). In this case, the power is 40 / 7 = 5.71 watts.

Therefore, the person who exerted a 5 newton force that moved a 12 kg box 8 meters in 7 seconds had a power of 5.71 watts.

To learn more about power, click here:

https://brainly.com/question/29575208

#SPJ4

The kinetic energy of Block A after it is pushed the given distance is twice the kinetic energy of Block B.

The work done on a body is equal to the change in kinetic energy of the body.

Work done on Block A = Change in kinetic energy of Block A

Fds = ½ mv2 (1)

Work done on Block B = Change in kinetic energy of Block B

F(2d) = ½ mv2 (2)

Since the force applied to both blocks is the same, we can equate the work done on both blocks:

Fd = F(2d)

d = 2d

From equation (1), the mass of Block A is twice the mass of Block B, so

m1 = 2m2

Substituting this in equation (2), we get

F(2d) = ½ (2m2) v2

2Fd = m2v2

Therefore, the kinetic energy of Block A is twice the kinetic energy of Block B.

For more questions like Work done click the link below:

https://brainly.com/question/30280752

#SPJ4

Answer:

Explanation:

The rate of breathing is affected by the environment's pressure and temperature. The pressure and temperature are lower at greater altitudes. As a result, the man's lungs will have to work harder to breath the same volume of air. We may use the following calculation to compute the new rate of breathing:

(Pressure1 x Temperature1) x Rate of breathing1 = (Pressure2 x Temperature2) x Rate of breathing1

Where Pressure1, Temperature1, and Rate of breathing1 are the pressure, temperature, and rate of breathing at sea level (760mm Hg, 18 degrees Degrees c, and 16 breaths per minute), and Pressure2, Temperature2 are the pressure and temperature at the mountain top (760mm Hg, 18 degrees Celsius, and 16 breaths per minute) (240mm Hg, 5 degrees C)

Plugging in the values, we get:

Rate of breathing = (760 x 18) / (240 x 5) x 16

Rate of breathing = 4 x 16

Rate of breathing = 64 breaths per minute

So the man's rate of breathing at the mountain top would be 64 breaths per minute. This means that his lungs would have to work 4 times harder to inhale the same mass of air as at sea level due to the lower pressure and temperature at the mountain top.

At 4.0 time will the interfering waves have an amplitude of zero.

To learn more about interfering waves refer to:

https://brainly.com/question/12128033

#SPJ4

As a transverse wave travels through a medium, the individual particles of the medium move a d) perpendicular to the direction of wave travel.

What are transverse waves?

Transverse waves are waves where the disturbance is 90 degrees to the direction the wave is traveling. They can be mechanical waves or electromagnetic.

What are examples of transverse waves?

Examples of transverse waves include moving a string tethered to a stationary object up and down to create oscillations that travel down the string or placing a slinky on the ground and moving it back and forth to create waves that travel down the slinky. Other examples are light waves, S-waves in earthquakes, and beach waves.

When a transverse wave travels through a medium the particles of the medium?

In a transverse wave, particles of the medium vibrate up and down perpendicular to the direction of the wave. In a longitudinal wave, particles of the medium vibrate back and forth parallel to the direction of the wave.

How does a transverse wave move through a medium?

When a transverse wave moves through a medium, the action of the particles of the medium is side-to-side perpendicular to the direction the wave travels. This can be in any direction relative to up and down, so long as it forms a line of movement perpendicular to the traveling direction.

Thus, option D) is the correct answer.

To know more about transverse waves:

https://brainly.com/question/2516098

#SPJ4

Using  conservation of linear momentum, the final velocity is 7.2 ms⁻¹.

The conservation of linear momentum states that the momentum of a system of bodies remains constant if the net external force acting on the system is zero. We must keep in mind that the system's momentum, not the momentum of the individual particles, is conserved. According to the principle of momentum conservation, momentum is only modified by the action of forces as they are outlined by Newton's equations of motion; momentum is never created nor destroyed inside a problem domain.

P = mv is the equation for linear momentum. Conservation of momentum refers to the fact that the overall amount of momentum remains constant.

As per conservation of linear momentum,

p0 = pf so that

(730)(25) + 1800(0) = (730 + 1800) vf.

18250 = 2530 vf  

vf = 18250 / 2530

Final velocity = 7.2 ms⁻¹

To learn more about Conservation of linear momentum from given link

https://brainly.com/question/22698801

#SPJ1

The acceleration and change in momentum are both 40 kg m/s.

Momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force applied on a particle is equal to the time rate of change of momentum.

Momentum shift in opposite directions:

Let the x direction point eastward and the y direction point northward.

As momentum shifts in the direction of x, we get:

Δpₓ = mvf - 0

Δpₓ = 4 * 6 = 24 kg m/s

As momentum shifts in the direction of a, we get:

Δpₐ = 0 - mvii

Δpₐ = (-4) * 8 = -32 kg m/s

Momentum and impulse alterations:

The overall momentum shift is,

Δp = √24² + 32²²

Δp = 40 kg m/s

The change in momentum is what constitutes the impulse, hence the impulse:

I = Δp = 40kg m/s

To know more about Momentum, refer to this link:

https://brainly.com/question/24030570

#SPJ4

The electrostatic force between the charges decreases by a quarter when the distance between them is doubled. The correct option to this question is A.

Between two point charges, there is electrostatic force.

Coulomb's law is used to compute the electrostatic force between two point charges: F= kq2 / r2

The letter F represents the force.

Coulomb's constant is k

q represents the fee.

The distance is given by r.

When the charge distance is doubled

F= kq2/(2r)2 F= kq2/(2r)2 F= kq2/(2r)2 F= 1/4kq2 / r2

Thus, doubling the distance between the charges reduces the electrostatic force between them by a quarter.

For more information on electrostatic force kindly visit to

https://brainly.com/question/26788983

#SPJ4

The density of the liquid, calculated by using Archimedes' Principle is 4.61 kg/m³.

To calculate the density of the liquid, we can use Archimedes' Principle, which states that the buoyant force of an object immersed in a liquid is equal to the weight of the liquid displaced by the object.

Therefore, we can calculate the density of the liquid by knowing the mass of the object and the volume of liquid displaced.

We can use the following equation to calculate the density:

Density = (Mass of Object)/(Volume of Liquid Displaced)

We know the mass of the object is 4.2 kg and the apparent mass of the object when submerged is 2.1 kg. Therefore, the volume of liquid displaced is (4.2 kg - 2.1 kg) = 2.1 kg.

Therefore, the density of the liquid is (2.1 kg)/(2.1 kg) = 4.61 kg/m³.

For more questions like Archimedes' Principle click the link below:

https://brainly.com/question/20709072

#SPJ4