:a 10 g bullet travelling at 300 m/s hits a 500 g wooden block that is initially stationary. the bullet becomes embedded in the block, and both travel together along a frictioneless surface. answer each of the following questions a) what is the kinetic energy of the bullet before it hits the block? b) what is the velocity of the bullet+block after the collision?

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

The softest and hardest minerals are: softest hardest