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4 years ago

(will mark brainliest)Which of the following has the most potential energy?

Physics

2 answers:

Anastasy [175]4 years ago

7 0

A car speeding down a 20 foot hill

Mashcka [7]4 years ago

5 0

The correct answer is a car at the top of a 20 foot hill.

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When you walk across the ground and push on it with your feet...

DerKrebs [107]

Answer:

The ground pushes back on your feet with equal force

Explanation:

When you walk across the ground and push on it with your feet, the ground pushes back on your feet with an equal and opposite force.

This interpretation and knowledge is gotten from Newton's third law of motion.

It states that "action and reaction force are equal and opposite in nature".

The force applied to a body responds with an opposite force in the other direction.
Therefore, the reaction force is of equal magnitude but directed in another direction.

4 0

3 years ago

Read 2 more answers

Which type of electromagnetic radiation is used to keep food warm?

n200080 [17]

Answer:

A. infrared

Explanation:

Heat lamps used to keep foods warm are infrared on the light spectrum

7 0

3 years ago

Kristen, a 3-year-old, enjoys taking baths and is always willing to get into the bathtub. Kristen hates to have her fingernails

SIZIF [17.4K]

Answer:

Explanation:

The law of effect given by Edward Thorndike explains the behavior of child given in the problem . The effect which gives pleasure and satisfying effect are likely to be learnt easily and the effect which creates bad taste are likely to be forgotten easily . actions producing feel good effect are likely to be repeated in future .

3 0

4 years ago

A jet airliner moving initially at 693 mph (with respect to the ground) to the east moves into a region where the wind is blowin

Nesterboy [21]

Answer:

The new speed of the aircraft with respect to the ground is 1414.3 mph.

Explanation:

Given that,

Angle = 37°

Velocity of jet airliner = 693 mph

Velocity of wind = 798 mph

We know that,

The new velocity of the aircraft with respect to the ground

$v=v_{a}+v_{w}$

We need to calculate the new speed of the aircraft with respect to the ground

Using formula for velocity

$v=\sqrt{(v_{a})^2+(v_{w})^2+2v_{a}v_{w}\cos\theta}$

Put the value into the formula

$v=\sqrt{(693)^2+(798)^2+2\times693\times798\cos37}$

$v=1414.3\ mph$

Hence, The new speed of the aircraft with respect to the ground is 1414.3 mph.

7 0

3 years ago

A toy car attached to a rope is traveling around in a circle. It makes 4 laps in 12s.What is the angular velocity of the toy car

umka21 [38]

Answer:

2.09 rad/s

Explanation:

Given that,

A toy car makes 4 laps in 12 s.

We need to find the angular velocity of the toy car. We need to find the angular velocity of the toy car.

4 laps = 25.13 rad

So,

$v=\dfrac{25.13\ rad}{12\ s}\\\\v=2.09\ rad/s$

So, the angular velocity of the toy car is 2.09 rad/s.

3 0

3 years ago