The potential energy of gravity is given by:
Answer:
5.9 J
Tennis is many different things to many different people. That's a big part of the reason why you hear so much about it, it gets on TV, and the people who are really good at it get a lot of money for running around in their shorts while they play it on TV.
To people who hate tennis but have been told by their doctors that they'll shrivel up and die if they don't immediately take up a high intensity physically-demanding sport, tennis could reasonably be classified as an exercise program.
When that happens, the best answer from the choices provided would be the upper-case ' T ' for ' True ' .
Answer:
A change in pressure
Explanation:
This is because, the deeper you dive, the height of water above you creates a pressure on you. So, as the depth increases, the height of water increases, thus its weight on you, thus its pressure on you also.
Also, as you gain altitude as you climb a mountain, the height of air above you decreases. This thereby decreases the weight of air above you thus, decreasing the pressure of air on you.
So, in both cases, there is a change in pressure as height or depth changes. An increase in height results in decreased pressure and an increases in depth results in increased pressure.
Answer:
7 m/s²
Explanation:
The formula for force is:
We want to find acceleration, so we must rearrange the formula for 
. Divide both sides of the equation by 
Acceleration can be found by dividing the force by the mass.
The force is 42 newtons and the mass is 6 kilograms. A newton is equal to 1 kg * m/s², therefore the force is 42 kg* m/s².
Substitute the values into the formula.
Divide. When we divide, the kg in the numerator and denominator will cancel each other out.
The acceleration of the object is 7 meters per square seconds.
Answer:
It is perceived as louder.
Explanation:
Amplitude affects the loudness of sound.
Frequency and wavelength affect the pitch of the sound.
