A rubber band has a spring constant of 15 N/m. If you stretch it by 0.3 m,

what is the magnitude of the force that resists the stretching?

O

A. 6.2 N

B. 4.5N

O C. 5.0 N

O D. 3.0N

Why does an object's mass and speed cause it to have kinetic energy?

Which units are used to express kinetic energy

Lighter elements are combined to form the sun and stars. what is this process called? What are the two lighter elements? What product come from this reaction?

What is the natural difference between members of a species

A series RCL circuit includes a resistance of 280, an inductive reactance of 508, and a capacitive reactance of 315. The current in the circuit is 0.312 A.

Which of the following statements are true? Check all that apply. O A positive charge and a negative charge attract each other. O Electric charge is conserved. O Two positive charges attract each other. O A neutral object contains no charge.

You push a shopping cart filled with groceries (total mass = 20 kg) by applying a force to the cart 30° from the horizontal. if the force you apply has a magnitude of 86 n, what is the cart's acceleration? assume negligible friction.

Two objects are made of the same material, but they have different masses and temperatures. If the objects are brought into thermal contact, which one will have the greater temperature change

A ball strikes a wall. It exerts a force of 10 N to the left against the wall and bounces off. What force does the wall exert on the ball?

A car slows down from 24 m/s to rest in a distance of 90 m. what was its acceleration, assumed constant? incorrect: your answer is incorrect. m/s2