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GalinKa [24]
3 years ago
7

In the oscillating spring ball system, what is true about the energy of the ball when it is located at its amplitude? Select the

correct answer A. The kinetic energy is at its maximum value and the potential energy is zero. B. The potential energy is at its maximum value and the kinetic energy is zero. C. The total energy is zero. D. Both the kinetic and potential energy are at their maximum our swer values
Physics
1 answer:
Nitella [24]3 years ago
8 0

When the maximum amplitude is reached, the body is also positioned in the maximum position which it can reach. At that point, the maximum potential energy stored in the system will therefore be taken.

PE = \frac{1}{2} kh_{max} ^2

However, when it reaches the maximum amplitude it is also in a change of direction of the velocity vector, reaching its minimum point in magnitude, thereby generating the kinetic energy to become zero.

KE = \frac{1}{2} mv^2

Therefore of the options shown, the correct answer would be B.

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Space-shuttle astronauts experience accelerations of about 35 m/s2 during takeoff. What force does a 75 kg astronaut experience
amm1812

Answer:

<h3>The answer is 2625 N</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 75 × 35

We have the final answer as

<h3>2625 N</h3>

Hope this helps you

5 0
3 years ago
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ExtremeBDS [4]

The Earth's axis' orientation in space gradually shifts due to the precession.

Precession is the name given to this motion, which is characterized by a cyclic wobble in the direction of the Earth's axis of rotation over a period of 25,772 years. The third motion of the Earth to be discovered, following the much more evident daily rotation and yearly revolution, is precession. The axial tilt of the Earth gradually changes over time as a result of precession. The points on the Earth's orbit where the equinoxes and solstices fall will shift over time. As a result, 13,000 years from now, the location of the summer solstice will change to that of the winter solstice. The Earth's axis changes its direction due to precession. In relation to the stars, the celestial poles steadily shift.

Learn more about precession here-

brainly.com/question/17180029

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6 0
1 year ago
What do we mean by the event horizon of a black hole?
Fynjy0 [20]

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HELP ASAP!!! Some bands hate playing in school gyms because sound waves easily reflect off the walls and floor. What could you d
jonny [76]

Answer:

1.) Covering the ceiling and walls with soft perforated boards

2.) Hanging curtains round the hall

3.) Having more opening in the wall.

Explanation:

This is due to what we called Reverberation due to poor acoustic properties.

Reverberation can be reduced by;

1.) Covering the ceiling and walls with soft perforated boards

2.) Hanging curtains round the hall

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true because they wont be able to comperes hard enough to set off little nuclear explosins

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