Question 3 of 10 According to the law of conservation of energy, which statement must be
true?
A. A system cannot take in additional energy.
B. Potential energy can only change to kinetic energy.
O C. There is only one form of energy.
D. The total energy of a system can decrease only if energy leaves
the system

Rosa records the distance that a toy car rolls and the time it takes to cover the distance. what scientific practice is this? collecting data asking a question providing explanations communicating results

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?