If a train is traveling at a constant, unchanging speed, what is it's acceleration?

can cuclin concentration durng mitosis be explained by the fact that the cell divides in two and thus divides the material in the cell into two smaller portions?

Why don't plants need a digestive system? A. They do not need nutrients to grow and develop. B. They use energy from the sun to make their own food. C. They create oxygen, which they use as food. D. They absorb water and food through their roots.

An arrow in a bow has 70 J of potential energy. Assuming no loss of energy due to heat, how much kinetic energy will it have after it has been shot? A) 140 J B) 70 J C) 35 J D) 0 J E) 50 J

A 7.0 kg bowling ball traveling at 2.0 m/s collides with a stationary 0.5 kg beach ball in an elastic collision. The bowling ball leaves the collision with a velocity of 1.5 m/s traveling in the same direction as the beach ball.

A 20N force pulls to the right and friction pulls 5N. If the mass is 5kg, find the acceleration

A group of two or more stars is called a A. solar system B. neutron star C. protostar D. star system

Which of the following is an example of potential energy? View Available Hint (s) Which of the following is an example of potential energy?

What type of material is wrapped around an object could cause the object to lose the most heat

What is the importance of the ozone layer?

Which of the following is an example of plasma?