A bullet was fired vertically up into the air at a velocity of 36meter per second. After4seconds, the bullet hit the top of a building. How is high is the building? g=10meter per second square .

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.)

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?