HELP ASAP

Imagine you have a new strand of lights wired in series-
parallel. All the bulbs are working as expected.
Which place in the circuit has the highest resistance?

The total distance travelled is 100 m.

We know that distance is a scalar quantity. Let us note that scalar quantities are the quantities that do not have a direction rather they do have  magnitude. This is where the vector is different from the scalar quantity in physics.

Looking at this description, we are told that the polar bear walks 40 meters North, then 20 meters East , then 40 meters south. We can see that the total distance can be obtained by the addition of all the distances travelled.

Total distance travelled is; 40 + 20 + 40 = 100 m

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The self inductance of a solenoid is 157.9 * [tex]10^{-4}[/tex] H

Self inductance is defined as the property of a current-carrying coil that resists or prevents the current passing through it from changing.

• It is represented by L

• The unit for the self inductance is Henry denoted by H.

• Mathematically, it is L = ц[tex]N^{2}[/tex]A / l

where

ц is the vacuum permeability = 4π *  [tex]10^{-7}[/tex]

N is the number of turns of the solenoid = 100

A is the area of one loop of the solenoid = π [tex]r^{2}[/tex]

( r = 2m )

A = π [tex]r^{2}[/tex] = 4π

l is its length

So the self inductance of the solenoid will be

L = 4π *  [tex]10^{-4}[/tex] * 100*100 * 4π / (10)

L = 16π² *  [tex]10^{-4}[/tex] H

L = 157.9 *  [tex]10^{-4}[/tex] H

The self inductance of this solenoid is 157.9 *  [tex]10^{-4}[/tex] H

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The acceleration of an object is moving in a circle at constant speed is just constant (or constant in magnitude). It is not constant in direction nor constantly increasing.

Acceleration in physics is defined to be the rate of change of the velocity of an object with respect to time. Acceleration, including centripetal acceleration, is a vector quantity because it has magnitude as well as direction. Objects that are changing speeds or changing directions (or changing both) are said to be accelerating.

Centripetal acceleration is the acceleration of a body traversing a circular path. It is equal to velocity squared over radius. Since an object traveling on a circular path is constantly changing directions, even at constant speed, the object is accelerating as well.

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The speed at 7.0 m along the x-axis is  4.24 m/s.

the rate at which the location of an object changes in any direction. The ratio of distance traveled to the time required to travel that distance is known as speed. Considering that speed only has a direction and no magnitude.

given,

speed of the object at origin = 4 m/s

potential energy at origin = 10 J

mass of the object = 2 kg

potential energy at 7 m = 8 J

since the system is conservative so it'll follow the conservation of energy

that is,

initial energy = final energy

kinetic energy = 0.5 ×m× v²

initial potential energy + initial kinetic energy = final potential energy + final kinetic

energy

10+ 0.5 × 2 × 4² = 8 + 0.5 × 2 × v²

v = 4.24 m/s

speed at 7m = 4.24 m/s.

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The final velocity of the orange will be equal to 21.27 m/s.

The equations of motion have established the relationship between the acceleration, velocity, time, and displacement (s) of a moving object.

The equations of motions can be mathematically expressed as:

[tex]v = u +at\\S=ut +\frac{1}{2}at^2\\ v^2-u^2=2aS[/tex]

Given, the velocity of the orange was at rest initially, therefore, u = 0

The time taken by the orange to fall, t = 2.17 s

The acceleration of orange due to gravity, g = 9.8 m/s²

From the first equation of motion, we can find the final velocity after 2.17 s:

v = u +gt

v = 0 + (9.8) × 2.17

v = 21.27 m/s

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First Quarter phase is the moon in when it rises around noon.

During the first quarter phase, the western half of the Moon is illuminated to resemble the letter "D." The Moon rises at noon that day and sets at midnight. When the Moon is in its waxing gibbous phase, it is mostly bright, and the illuminated area is egg-shaped (gibbous), with the eastern edge shadowed.

Lunar phases are the many phases of the moon. The sun's light is reflected by the moon, which does not produce any light of its own. New moons occur when the distant side of the moon is illuminated by sunlight. A new moon is visible when it reflects from a side that is close to it.

The moon goes through eight phases: new moon, waxing crescent, first quarter, full moon, waxing gibbous, third quarter, and declining crescent.

It takes the moon 29.5 days, or roughly one month, to go through all of these phases. This cycle of the moon changing phases is known as the lunar cycle.

Gibbous phases appear when more than half of the moon is illuminated, while crescent phases occur when just half is lighted.

Waxing is an increase in illumination, whereas waning is a reduction.

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Knowing the power of the units and the electromagnetic waves is necessary to calculate the net energy unit.

What is power?

Power is the work completed in a given amount of time or time spent working. The joules per second (J/s)-based SI power unit is the Watt (W). Horsepower (hp), roughly equal to 745.7 watts, is sometimes used to describe the power of machines like motor vehicles.

What are electromagnetic waves?

Magnetic and electric fields vibrate together to produce electromagnetic waves, also known as EM waves. In other words, oscillating magnetic and electric fields make up electromagnetic waves (EM).

P=I*A=t=E/t

E=I*A*T

I= 153W/M^2

A=18.2*45.1*10^-4

A=0.082082

t=1.22mins = 1.22*60^S

t= 73.2

applying the formula E=I*A*T

E= 919.2855j

Therefore, the net energy absorbed in 1.22 min is 919.285j.

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The answer of this is "Its surface composition"

Mars is the fourth planet from the Sun and the next planet beyond Earth. It is, on average, more than 142 million miles from the Sun.

Its surface is rocky, with canyons, volcanoes, dry lake beds and craters all over it. Red dust covers most of its surface. Mars has clouds and wind just like Earth. Sometimes the wind blows the red dust into a dust storm. Tiny dust storms can look like tornados, and large ones can be seen from Earth. Mars’ large storms sometimes cover the entire planet.

Mars has about one-third the gravity of Earth. A rock dropped on Mars would fall more slowly than a rock falls on Earth. A person who weighs 100 pounds on Earth would only weigh about 38 pounds on Mars because of the reduced gravity.

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The silk can get a negative charge if it is rubbed against  iron rod and it can get a positive charge if it is rubbed against hair.

We know that a  charge is made when there is either an excess or a deficit of electrons. When there is an excess of the positive charge on an object, we can say that the object ha become positively charged. If there is an excess of negative charges, we can say that the material is negatively charged. We now want to determine how we could make silk to become positively or negatively charged.

If we want the silk to have a negative charge then we have to rub the silk with a glass rod. If the silk is rubbed with a glass rod, what would happen is that electrons would be transferred from the rod to the silk leaving the silk with a negative charge.

If you want the silk to have a positive charge, you could rub it against hair. In that way, the hair would get an negative charge while excess electrons are transferred to the silk making it to have a positive charge.

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Its length is 6.6m.

Length contraction is a phenomena where a moving object's length is measured to be less than it actually is.

When an object is travelling faster than the viewer, but not at the speed of light, length contraction is seen. The relativity of space and time is the cause of this. The two extremes of a moving object will send out signals like light at somewhat different intervals to an observer watching the thing.

Using the relationship between length contraction,

l = l₀[tex]\sqrt{1-\beta^{2} }[/tex]

β = v/c

l₀ = 10m

v = 0.75c

v/c = 0.75

In place of, we have

l = 10×[tex]\sqrt{1-0.75^{2} }[/tex]

l = 10× 0.66

l = 6.6m.

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CT scan stands for computerized x-ray imaging in the transverse plane.

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The correct answer is option C.

The atmosphere of Saturn appear to have only half the helium content of Jupiter because Saturn is so much colder, helium does not show up as strongly in its spectrum.

The planet Saturn is a giant ball of gases including hydrogen, helium and methane. All these gases make up a thick atmosphere of the planet.

In general, the concentration of hydrogen is about 96.3%, helium 3.25% and methane 0.45%.

Clouds on Saturn are composed of ice crystals of ammonia and the temperature is around -400F which is much colder then Jupiter.

Thus, atmosphere of Saturn appear to have only half the helium content of Jupiter because Saturn is so much colder.

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The tension in the cable is 4248 N.

The force transmitted through a rope, string, or wire when two opposing forces pull on it is known as tension. The tension force pulls energy equally on the bodies at the ends and is applied along the entire length of the wire.

Given parameters:

Weighs of the elevator, M = 300.0 kg.

weighs of Joey, m = 60.0 kg.

Upward acceleration of the elevator, a = 2.0 m/s².

And, acceleration due to gravity, g = 9.8 m/s².

So, net tension in the cable, T = (M + m)g + (M + m)a

= ( 300.0 + 60.0 ) × 9.8 N + (300.0 +60.0 )× 2.0 N

= 4248 N.

Hence, the tension in the cable that pulls the elevator upwards is 4248 N.

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When using a schematic for troubleshooting, the best property to follow is the meter and is denoted as option B.

This is referred to as any type of device which is built to accurately detect and display an electrical quantity in a form which is readable by a human being.

Examples of meters which are used by people include voltmeter, ohmeter etc which are used to read voltage and current respectively. It is used to troubleshoot when schematics are used as certain parameters are detected and analyzed so as to detect the issue and solve it appropriately.

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The sun's intensity for an outer planet located at a distance 6r from the sun is 5.55 W/m². The result is obtained by using the inverse square law formula.

The Inverse Square Law formula describes the intensity of light is inversely proportional to the square of the distance. It can be expressed as

[tex]\frac{I_{1} }{I_{2} } = \frac{d_{2}^{2} }{d_{1}^{2}}[/tex]

Where

Given the case the sun's intensity is 200 W/m² for an inner planet at the distance r. If an outer planet is at a distance 6r, what is the sun's intensity?

By using the inverse square law formula, the sun's intensity for an outer planet is

[tex]\frac{I_{1} }{I_{2} } = \frac{d_{2}^{2} }{d_{1}^{2}}[/tex]

[tex]\frac{200 }{I_{2} } = \frac{(6r)^{2} }{r^{2}}[/tex]

[tex]\frac{200 }{I_{2} } = \frac{36r^{2} }{r^{2}}[/tex]

[tex]I_{2} = \frac{200} {36}[/tex]

I₂ = 5.55 W/m²

Hence, the sun's intensity for a planet at a distance 6r from the sun is 5.55 W/m².

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In the first step in the proton-proton chain, the positron gets rapidly converted to energy when it meets a standard electron, leading to matter-antimatter annihilation.

The positron is an antiparticle or antimatter counterpart of the electron. It persists an electrical charge of +1e, a spin of 1/2, and a mass identical to the mass of the electron. When a positron collides with an electron, destruction occurs. If this collision is at low energies, it leads to the production of two or more photons. They're created by radioactive decay or by the pairing of two protons at high energies.

The proton-proton chain is a nuclear fusion. The proton-proton fusion is initiated only when the kinetic energy of the proton is high enough to undergo the electrostatic repulsion.

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1.When two objects collide, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to accelerate (gain speed) and another object to slow down (lose speed).

2. The effect of the forces experienced on the objects during the collision is different if the masses of the objects are different. The same  force causes different changes in velocity for objects with different masses. An object with a smaller mass has a greater change in velocity when the same force is applied.

A collision means that two objects collide with each other for a very short time. In other words, a collision is the interaction of two masses in a very short period of time, where the momentum and energy of the colliding masses change.

The law of conservation of momentum usually applies to collisions between two masses, but some collisions may involve kinetic energy. Depending on the conservation of energy there can be two types of conservation:

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Bernoulli's principle produces a lift of  3770928N on a 87m²wing.

According to Bernoulli's principle, areas of a fluid flow that are moving more quickly will experience less pressure than areas that are moving more slowly.

The following memorable word equation serves as a concise summary of Bernoulli's equation in its simplified form: Total pressure equals static pressure plus dynamic pressure. Regardless of the fluid speed at a given position, every point in a constantly flowing fluid has a distinct static pressure (p) and dynamic pressure (q).

Bernoulli's principle states that the following expression represents force:

F = A × d × V²₂ - V₁²/2

F = 87 × 1.29 × (250² - 170²)/2

F = 112.23 × 33600

F = 3770928N

As a result, a wing with an area of 87 m² has a lift of 3770928N.

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307.4 μW/m² average magnitude of the poynting vector 5.00 mi with an average power of 250 kw?

S-average=power/area

power=250 kw

area=4π(8045)²

S-average=250/4π(8045)²

S-average=307.4 μW/m²

Power is produced when a force causes a displacement. Power has no bearing on how long it takes for a force to cause a displacement. The process's pace might range from swiftly concluding to taking some time. For example, it takes an abnormally long time for a rock climber to elevate her body a few meters over the cliff's edge. On the other hand, a trail hiker may swiftly raise her body a few meters if she selects the faster path up the mountain. Despite making the same amount of work, the hiker completes the task far quicker than the rock climber..

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The acceleration of the wheelbarrow is 0.621 m/s^2 .

There will be equal force applied on both side, in that case the object will be having zero motion and zero acceleration.

But in the case when there is more force applied in one direction than other side force then there will be acceleration on the object.

This acceleration is equal to the ΔF/m.

where ΔF is the difference of the forces applied on the both direction

and m is the total mass of the object.

According to the question, we have m = 37Kg

ΔF = (36-13) n = 23 n

so a = 23/37 = 0.621 m/s^2

so acceleration of the wheelbarrow is 0.621 m/s^2 .

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The charge for a procedure or accepting fees that are predetermined by the plan is dependent on the patient's ability to pay.

Doctors and surgeons deal with maintaining health as well as diagnosing and treating illnesses and injuries. In addition to conducting physical examinations and medical history inquiries, doctors also order, carry out, and interpret diagnostic tests. Patients frequently receive advice from them on food, cleanliness, and preventative healthcare.

Physician labor is the part of the Medicare Physician Fee Schedule that represents the overhead expenses related to a service.

While precertification gives the provider permission to provide the medical service, preauthorization specifically establishes the dollar amount approved for the medical procedure.

The main distinction between doctors and physicians is that doctors typically specialize in a field of practice while physicians typically have a more general background.

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When father uses a rope to pull a child on a sled at a constant speed then the sum of all the forces acting on sled is zero.

Forces such as normal force, force of gravity, force of friction, tension and air resistance are present.

But as the father pulls the sled with constant speed then the the sum of all the forces acting on the sled becomes zero.

As there is no movement in upward or downward directions then the weight of the child and the sled is equal to the normal force acted upon the sled by ground.

The force which is applied by the father on the rope is equal to the tension in the rope.

Friction and air resistance act opposite to the direction of motion of the sled and as sled moves at constant speed, tension in the rope must be equal to the sum of friction and air resistance forces.

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342.5 N of force must she exert to stay on if she is 0.891 m from its center while 22.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min

Since we are given the mas of the child  which is  22.0 kg and the number of revolutions which is 40.0 rev/min   which will be  :

n=2*3.14 *40.0 /60  = 4.18 radians/s

and the distance from the center is  0.891 m( r). The formula we are referring to calculates the centripetal force :

F= m(n)²* r

=22(4.18)²*0.891

= 342.49 = 342.5 N

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The total force resisting the motion of the boat will be 26850.6 Newton when an outboard motor for a boat is rated 35 hp.

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The force (F) exerted on the mower of mass 24 kg is 2.125 N and The distance the mower will travel when before it stopping when F is removed is 0.53m.

Force can be defined as the product of mass and acceleration.

To calculate the force the person is exerting on the mower, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Also, To calculate the distance the mower will move before stopping, We need to first find the acceleration of the mower using the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 2

Finally, we use the formula below to calculate the total distance the mower will travel before stopping

Formula:

Where:

From the question,

Given:

Substitute these values into equation 3

Hence, the force exerted on the mower is 2.125 N and the distance the mower will travel before it stops is 0.53m.

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The statement that is true regarding a distance vs. time graph is option A: The graph should show distance on the vertical axis.

How far an object has come in a certain amount of time is displayed on a distance-time graph. Time is represented on the X-axis and Distance is plotted on the Y-axis (left) (bottom).

On a distance-time graph, an object's motion is indicated by a sloping line. The slope or gradient of the line in a distance-time graph is equal to the object's speed. The object is travelling more quickly the steeper the line is (and the bigger the gradient).

Note that the distance-time graph shows the relationship between distance and time by plotting distance on the y-axis and time on the x-axis.

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Answer:

(Question) Which quantity is scalar?

(Answer) Energy

(Question) Which option describes a vector quantity?

(Answer) It has magnitude, units, and direction.

(Question) A sailboat ends up 7 miles to the west of a pier. Which statement is true about this situation?

(Answer) It describes displacement, which is a vector quantity.

(Question) Which statement is true regarding a distance vs. time graph?

(Answer) The graph should show distance on the vertical axis.

(Question) On a distance vs. time graph for an object, a line segment that is sloping upward indicates

(Answer) motion in the positive direction.

Explanation:

just finished the quick check UwU

(a) The acceleration (in m/s²) of the two blocks is 4.42 m/s².

(b) The tension (in N) in the string connecting the blocks is 63.65 N.

The acceleration of the blocks is determined by applying Newton's second law of motion as shown below.

F(net) = ma

where;

F = m₁a + m₂a

F = a(m₁ + m₂)

a = F/(m₁ + m₂)

where;

a = (153) / (14.4 + 20.2)

a = 4.42 m/s²

The tension (in N) in the string connecting the blocks is calculated as follows;

T = m₁a

T = 14.4 x 4.42

T = 63.65 N

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The package travel along the horizontal 516.1 m before hitting the ground.

When an object was released from a plane with a constant speed, the object also has a gravity force. So the object has a projectile motion.

If the problem didn't give the magnitude of the acceleration due to gravity, we can assume it's 10 m/s².

Calculate elapsed time.

[tex]h = \frac{1}{2} gt^2[/tex]

[tex]315 = \frac{1}{2} \times 10 \times t^2[/tex]

315 = 5 × t²

[tex]t^2 = \frac{315}{5}[/tex]

t² = 63

[tex]t = \sqrt{63}[/tex]

t = 7.94 s

Calculate the displacement.

d = uₓ × t

d = 65.0 × 7.94

d = 516.1 m

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Light beam pass through the flat surface without deviation, but get refracted (i.e., deflected) at the curved surface on the far side as it may be at 90° to the curved surface.

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