How much work must be done to accelerate an 8.5*10^5 kg train from a) 10m/s to 15m/s b) 15m/s to 20m/s and c) to an Initial stop of 20m/s

Why might two places at the same distance from the equator have different climates

Which form of energy does a battery-powered flashlight receive as an input? A. chemical potential energy B. radiant energy C. solar energy D. thermal energy

I need answer really fast. An experiment is conducted to determine how the arm length of a pendulum affects its period. The experimental design calls for varying the length of the arm and the mass of the bob.

The diagram shows two charged objects, X and Y. Answer X: positive Y: positive

Match the glacier feature with its description. A. (Kettles) Holes left by glaciers B. (Drumlins) Egg-shaped hills C. (Erratics) Three-sided valleys D. (Cirques) Large, out-of-place boulders

An example of forced convection is the movement of hot air by a fan. true or false?

An object has a kinetic energy of 233 J and a momentum of magnitude 20.4 kg·m/s. Find the speed and the mass of the object.

What is the average velocity of atoms in 1.00 mol of neon (a monatomic gas) at 465 K? For m, use 0.0202 kg.

What type of visible light spectrum does the sun produce?

In order for a current to be maintained through a conductor a difference in must be maintained from one end of the conductor to the other end. potential power resistance conductivity