A 3000 kg freight train traveling at a rate of 2 m/s strikes a stationery 3000 kg freight car and couples up. What is the speed of the 2 cars as they move together after the collision?

A black body radiates heat energy at the rate of 2 x 10 Js" m' at a temperature of 127° C. The temperature of the black body at which the rate of heat radiation is 32 x 105 Js'1 m2 is

What is the MOST common form of government system in Europe?

An elevator (mass 4000 kg) is to be designed so that the maximum acceleration is 0.0500g. what is the maximum force the motor should exert on the supporting cable?

Suppose a miracle car has a 100% efficient engine and burns fuel that has a 40-megajoules-per-liter energy content.

If the earth makes one orbit around the sun what is it called

What did the romans build as a step toward environment management

Accelerations are produced by equal forces or unequal forces?

A wave travels through a medium. As the wave passes, the particles of the medium vibrate in a direction perpendicular to the direction of the wave's motion. The wave is a. longitudinal. c. electromagnetic. b. a pulse. d. transverse.

Two carts undergo an inelastic collision where they stick together. Cart A has an initial velocity v0, and the second cart B is initially at rest.

a car slows down from 22 m/s to 3 m/s at a constant rate of 3.5 m/s squared. how many seconds are required before the car is traveling at 3 m/s?