Using Hooke's law, Fspring=kΔx, find the elastic constant of a spring that stretches 2 cm. when a 4 Newton force is applied to it.

A) 1/2N/cm

B) 2N/cm

C) 4N/cm

D) 8N/cm

Which of the following tends to increase in a system? A. temperature B. Heat C. Entropy D. Energy

If the voltage and resistance in a circuit both double, what happens to the current? use ohm's law to explain your answer.

Suppose that you wanted to close a door by throwing a ball at the door. one ball will bounce off the door in a perfectly elastic collision while the other ball is made of clay and will stick to the door.

What is the best definition of muscular strength

A space station orbits the sun at the same distance as the earth but on the opposite side of the sun. A small probe is fired away from the station. what minimum speed does the probe need to escape the solar system?

What is the name given to the system of units use the united States?

The average distance to the stars that make up the constellations in the night sky around the sun is about

What happen when a light from the sun passes through any type of matter

A projectile is launched at ground level with an initial speed of 53.0 m/s at an angle of 35.0° above the horizontal. It strikes a target above the ground 2.50 seconds later.

A 2650-lb car is traveling at sea level at a constant speed. its engine is running at 4500 rev/min and is producing 175 ft-lb of torque.