A car accelerates uniformly from rest tona speed of 30.0 mi/h in 12.0s. Find the distance the car travels during this time? Find the constant acceleration of the car?​

Answer:

Cool air sinks and warm air rises.

Explanation:

Answer:

B. Different seasons in the hemispheres during the same time of year.

Explanation:

The seasons are caused by the tilted axis of the Earth.

Δp = m(v₂-v₁)

v₁ = 12 m/s

v₂ opposite direction = - (negative sign) = -18 m/s

Δp = 6.10⁻² (-18-12)

Δp = -1.8 Ns

a. We can calculate the amount of work by calculating the area under the graph.

first area (rectangular): 2.5 x 6 = 15

second area(trapezoid): 1/2 x (6+10) x 2.5 =20

total work done: 35 J

b. the force was first applied = 6 N

F = m.a

a = 6 : 3 = 2 m/s²

vf²=vi²+2as

vf²=6²+2.2.5

vf²=56

vf=7.5 m/s

Explanation:

[tex]w = m.g[/tex]

[tex]m =70 \\ g = 10[/tex]

70x10=700N

The frequency of the second harmonic is 880 Hz (a pitch of A5). The speed of sound through the pipe is 350 m/sec. Find the frequency of the first harmonic and the length of the pipe. The length of an air column is related mathematically to the wavelength of the wave which resonates within it.

Answer:

(75)(8.5)cos(28)=562.879J

Explanation:

W=Fdcos(theta)

Answer:

The odometer registers the distance traveled by the vehicle; it consists of a train of gears (with a gear ratio of 1,000:1) that causes a drum, graduated in 10ths of a mile or kilometre, to make one turn per mile or kilometre.

Explanation:

hope it helps

The point on the y -axis in which the resultant electric field of the two lines of charge equal to zero is 5.5 cm.

The electric field due to each line is calculated as follows;

[tex]E = \frac{kq}{r^2}[/tex]

where;

In the question, we were given charge per unit length instead of charge.

Since the midpoint of two lines are same, can assume that they are equal.

Hence, the total charge in each line will be;

At a zero resultant electric field;

[tex]E_1 = E_2\\\\E_1 + E_2 = 0\\\\\frac{kq_1}{r_1^2} = \frac{kq_2}{r_2^2}[/tex]

Let the position on y p axis = n

[tex]\frac{K (8 \ \mu C/L)\times L}{(n - 0)^2} + \frac{K(-4\ \mu C/L) \times L}{(0.14 - n)^2} = 0\\\\\frac{K(8\mu C)}{(n)^2} - \frac{K(4\mu C)}{(0.14- n)^2} = 0\\\\\frac{K(8\mu C)}{(n)^2} = \frac{K(4\mu C)}{(0.14- n)^2} \\\\\frac{8}{n^2} = \frac{4}{(0.14 - n)^2} \\\\4n^2 = 8(0.14 - n)^2\\\\4n^2 = 8(0.02 -0.28n - n^2) \\\\4n^2 = 0.16 - 2.24 n - 8n^2\\\\ 12n^2+ 2.24n - 0.16 = 0\\\\a = 12, \ b = 2.24, \ c = -0.16\\\\n = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a} \\\\[/tex]

[tex]n = \frac{-2.24\pm \sqrt{(2.24)^2 - 4(12)(-0.16)} }{2(12)} \\\\n = 0.055 \ m\\\\n = 5.5 \ cm[/tex]

Thus, the point on the y -axis in which the resultant electric field of the two lines of charge equal to zero is 5.5 cm.

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Answer:

As Per Provided Information

we have been asked to determine the change in momentum .

Formula Used

[tex] \bf\Delta \: p = m \: \times \Delta \:v[/tex]

Put the given value we obtain

[tex] \rm \qquad \dashrightarrow \Delta \: p \: = 1600 \times (0 - 20) \\ \\ \\ \rm \qquad \dashrightarrow \Delta \: p \: = 1600 \times ( - 20) \\ \\ \\ \rm \qquad \dashrightarrow \Delta \: p \: = - 32000 \: kgm {s}^{ - 1} [/tex]

Hence,

So, correct option is (a) -32000 Kgm/s.

The change in the momentum of a 1,600 kg car if its velocity goes from 20 m/s to O m/s  is -32000 Kg-m/s.

The meaning of MOMENTUM is a property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body's mass and velocity. Momentum is vector quantity.

Given in the question

Mass of car is 1600 Kg

Initial velocity 20 m/s

Final velocity 0 m/s

we have been asked to determine the change in momentum

Momentum = mass*(change in velocity)

                   = 1600(0 - 20)

                   =  -32000 Kg-m/s

The change in the momentum of a 1,600 kg car if its velocity goes from 20 m/s to O m/s is  -32000 Kg-m/s.

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1. Some of their debts can be eliminated, and loan terms are renegotiated with lenders.

2. All of their debts are eliminated, and they are given a fresh start.

3. All of their debts are eliminated, but they have to sell their assets, such as their homes.

D took the test UWU

The statement is all of their debts are eliminated, but they have to sell their assets, such as their homes. Option (c) is correct.

During the legal process of bankruptcy, individuals or other entities that are unable to pay their creditors back can seek partial or complete relief from their debts. Bankruptcy is typically imposed by a court order that is frequently requested by the debtor.

An opportunity to start all over is provided through bankruptcy by wiping off uncontrollable debts. In the meanwhile, creditors may be able to receive some payment based on the person or company's liquidate assets.

Declaring bankruptcy should help the economy as a whole by giving individuals and business organizations another chance to recover financially. It may also assist persons in recovering some loan repayment.

Therefore, Option (c) is correct.

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Answer:

static could form and The balloon becomes positively charged

Explanation:

Science

The speed you must go over the bump if people in your car are to feel "weightless" is 18.52 m/s.

Weightlessness is the complete or near-complete absence of the sensation of weight. In this situation, the downward acceleration is equal to acceleration due to gravity.

a = g

v²/r = g

v² = rg

v = √rg

where;

v = √(35 x 9.8)

v = 18.52 m/s

Thus, the speed you must go over the bump if people in your car are to feel "weightless" is 18.52 m/s.

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Answer:

work done = force x distance

1.2 = f x 120

1.2 = 120f

f = 0.01N

hope its helps!

Answer:

C - the greatest net force is on c with 25N - 10N = 15N

a = F / M

a = (v2 - v1) / t     so C has the greatest acceleration and will reach the greatest velocity

KE = 1/2 M v^2

The diagrams show four bodies moving in the directions shown. The only forces acting on the bodies are shown in each diagram. The option C body gains the most kinetic energy when moving a distance of 1.0m.

When some amount of force is applied on a object it can store a energy in that object. That is the kinetic energy. Mathematically the mass of the object and its change in acceleration in that object makes the kinetic energy. It is a vector quantity.

To calculate the kinetic energy we are using the formula,

U= (1/2)mv²

U = (1/2) ma²t²

Or, U= (1/2)ma × at²

Or, U= F × (1/2)at²

From this calculation we can see that if there is more force applied on a body that generates more kinetic energy on that object.

According to the question ,

Force of the object of Option A has (F) = f₂ - f₁

                                                                = (20 - 10)

                                                                = 10N

Force of the object of Option B has (F) = 10N

Force of the object of Option C has (F) = f₂ - f₁

                                                                 =(25-10)= 15N

Force of the object of Option D has (F) = f₂ - f₁

                                                                 = (30-30)

                                                                 = 0N

According to the question, option C has the most amount of force and we know the more force generate the more kinetic energy. So it has the more kinetic energy.

We can easily say that,  The option C body gains the most kinetic energy when moving a distance of 1.0m

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Answer:

Nuclear Power Plant

Explanation:

Heat produced during nuclear fission to heat water. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy. Fission takes place inside the reactor of a nuclear power plant. At the center of the reactor is the core, which contains uranium fuel.

Answer:

Consider a proton travelling due west at a velocity of 5×10^5m/s. Assuming that the rth magnetic field has a strength of 5x10^-5Tand is directed due south calculate li) the magnitude of the force on the proton (q= 1.6x10^-9C)​

Explanation:

Given what we know, we can confirm that the Earth pulls more strongly on the moon, option A is correct.

This has to do with the relationship between the mass of an object and its gravitational pull. These values are directly proportional, the more massive an object is, the stronger the gravitational pull that object exhibits. The moon does pull on the Earth as well, however, due to its smaller mass, it does not pull as strongly as the Earth on the moon.

Therefore, we can confirm that the Earth pulls more strongly on the moon, which means that option A is the correct choice for this question.

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Answer: MIS huevos

Explanation:

my sources

The required rotational speed ω to generate a peak voltage of 6 V is 4.24 rad/s

The induced peak voltage in the generator is given by ε = NABω where

Making ω subject of the formula, we have

ω = ε/NAB

ω = ε/Nπr²B

Substituting the values of the variables into the equation, we have, given that ε = 6 V

ω = ε/Nπr²B

ω = 6 V/(200 turns × π(0.15 m)² × 0.10 T)

ω = 6 V/(200 turns × 0.0225π m² × 0.10 T)

ω = 6 V/(200 turns × 0.0225π m² × 0.10 T)

ω = 6 V/0.45π turns-m²T

ω = 6 V/1.4137 turns-m²T

ω = 4.244 rad/s

ω ≅ 4.24 rad/s

The required rotational speed ω to generate a peak voltage of 6 V is 4.24 rad/s

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Answer:

C. Spontaneously covered

Explanation:

Answer:

Answer: simple h. momenta=6.0*3.5. =21.0.

Explanation:

The fuel efficiency of the vehicle is 5.71%.

The fuel efficiency of the vehicle is determined from the ratio of volume of fuel used to the total distance traveled.

Distance traveled by the vehicle = 350 km

Volume of fuel used = 20 L

e = (20 / 350) x 100

e = 5.71%

Thus, the fuel efficiency of the vehicle is 5.71%.

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Answer: 17.5

Explanation:

1. i did the same problem and got it right
2. you don't do "kmpl" but rather you have to do "km/l" which represents the kilometers over the liters

Answer:

hope this helps

Explanation:

The ramps to be constructed are straight ramps. So, their lengths must be straight.

An incline or inclined plane is defined as a plane or flat surface that is tilted at a particular angle and the incline have one end higher than other.

Here,

The inclined plane or a ramp can be considered as a simple machine used for raising heavy objects through its steeper surface.

Three ramps are to be constructed that are having the configurations of straight run such that one of them should be constructed nearly flat.

The other one is to be constructed in a way that its slopping surface must be extremely steeper.

The last one is constructed such that the sloping surface have a steepness somewhere in between the other two.

Since the ramps to be constructed are straight ramps, their lengths must be straight.

Hence,

The ramps to be constructed are straight ramps. So, their lengths must be straight.

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Attaching the image here

Answer:

Brownian motion, or pedesis, is the random motion of particles suspended in a medium.

Explanation:

of motion typically consists of random fluctuations in a particle's position inside a fluid sub-domain,

Answer:

The erratic random movement of microscopic particles in a fluid, as a result of continuous bombardment from molecules of the surrounding medium is called Brownian motion. Hope it helps you.

Answer:

The plants recycle carbon during the process of photosynthesis by the carbon in the carbon dioxide is recycled as glucose. Hence, option D is correct.

Photosynthesis is the conversion of light energy to electrical energy in green plants and several other organisms. Green plants employ light energy during photosynthesis to convert water, carbon dioxide, and mineral into oxygen- and energy-rich organic molecules.

Photosynthesis is essential to the preservation of life on Earth, and its significance cannot be overstated. The amount of food and other organic materials on Earth would quickly decline if photosynthesis stopped. The majority of life forms would vanish, and eventually the atmosphere of Earth would be that few of gaseous oxygen.

The only organisms that might survive in such an environment would be chemosynthetic bacteria, which can use the hydrogen gas of specific inorganic materials and are not reliant on the conversion of light energy.

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Answer:

the answer would be "using more heat" btw

Explanation: