A demonstration of interference is done in class. A Slinky is stretched out from end to end. Three cups are placed on the ground, positioned just to the side of the Slinky™. Two pulses are introduced into each end at the same time. The pulses travel towards each other as shown in the overhead view 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.)

What is the momentum of a 2 kg object moving at 15 meters per second

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus