A5000 kg train is traveling at the velocity of 10 mi / seconds and hits another train the two chains put together in the new velocity is 50 miles per second what is the mass of the second train?

a) 5,000 kg
b)15,000
c) 10,000
d) 8,000

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.