ANSWER CORRECTLY Someone pushes a go cart with a force of 165N the mass is 90.0 kg, the go cart accelerates over the rough ground at 1.4m/s^2.

a) draw a free body diagram
b) Write a F net statement and find Force of friction acting on the go cart.
c) what is the value of mu ​

The midpoints? a, b, and c are marked on the histogram. match them to the indicated scores. which? scores, if? any, would be considered? unusual?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory