A train travelling at 50km/h approaches another train moving towards the first at 90km/h. If they are 35km apart (on a straight track) how long does it take before they meet?

What is it called when rock layers bend due to stress?

If two teams play tug of war and neither team can move the rope, is the rope experiencing balanced forces or action and reaction forces? how do you know?

Which type of energy does a swinging pendulum demonstrate? A. chemical energy B. only kinetic energy C. both potential and kinetic energy D. only potential energy

A hydraulic machine can be used to lift extremely heavy objects. why is the fluid in the hydraulic machine a liquid rather than a gas?

A 1250 kg car accelerates from rest to 6.13m/s over a distance of 8.58m calculate the average force of traction

In order to hike around a portion of Lake Allatoona, a tour guide determines that he must take his group 150 m east, 60 m north, then 75 m west.

Explain what happens to light when it is refracted at the surface of water.

A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the magnitude of the momentum change during the collision is correct? (There could be more than one correct choice.

Consider the following distribution of objects: a 3.00-kg object with its center of gravity at (0, 0) m, a 4.20-kg object at (0, 6.00) m, and a 1.40-kg object at (1.00, 0) m. Where should a fourth object of mass 7.

A Volt/Amp Is Also Known As.?