Gravity - is the universal force that is effective over the longest distance.
Answer:
The velocity of the center of mass of the two-object system remains constant during the experiment.
Answer:
doesn't move, no work is done; if a force is applied and the object moves a distance d in a direction other than the direction of the force, less work is done than if the object moves a distance d in the direction of the applied.
Answer:
Explanation:
The attached image shows the system expressed in the question.
We can define an expression for the system.
The equivalent equation for the system would be
so, the input signal could be expressed in dB terms
![P_{in} [dB] = 10 log_{10}(P_{in}) \\P_{in} [dB] = 10 log_{10}(0.4)\\P_{in} [dB] = -3.97 dB](https://tex.z-dn.net/?f=P_%7Bin%7D%20%5BdB%5D%20%3D%2010%20log_%7B10%7D%28P_%7Bin%7D%29%20%5C%5CP_%7Bin%7D%20%5BdB%5D%20%3D%2010%20log_%7B10%7D%280.4%29%5C%5CP_%7Bin%7D%20%5BdB%5D%20%3D%20-3.97%20dB)
(1)
so the output signal could be expressed as.
The gain should be expressed in dB terms and power in dBm terms so
using the (1) equation to find it in terms of Watts
If the impulse is 25 N-s, then so is the change in momentum.
The mass of the ball is extra, unneeded information.
Just to make sure, we can check out the units:
<u>Momentum</u> = (mass) x (speed) = <u>kg-meter / sec</u>
<u>Impulse</u> = (force) x (time) = (kg-meter / sec²) x (sec) = <u>kg-meter / sec</u>
