Let two objects of equal mass m collide. Object 1 has initial velocityv, directed to the right, and object 2 isinitially stationary.

If the collision is perfectly elastic, whatare the final velocities v_1 and v_2 of objects 1 and 2?

Imagine the earth no longer have the moon which of the following would probably be true a The change and water levels during tides would increase b The change in water levels during tides would decrease c The change in what her levels during tides

A substance that accelerates the rate of a chemical reaction is called a (an) a. catalyst. c. molecule. b. lipid. d. element.

Which term describes an observable fact, event, or circumstance? A. Experiment B. Theory C. Hypothesis D. Phenomenon

There are only two factors that affect your environment true or false

Describe the Milky Way. What does it contain?

Electric forces can be either repulsive or attractive, whereas gravitational force is always:

Which describes why the magma moves in the direction of the arrows? A The magma is cooled and becomes more dense by the core moving it toward the crust. B The magma is heated and becomes more dense by the core moving it toward the crust.

Determine the difference in the speed of sound in hydrogen at 0 degrees Celsius and in air at 30 degrees Celsius. Also indicate if is it faster or slower

A small car and a large truck are driving down a highway, which statement would support the premise that the truck has more momentum? A) A large truck has a much larger mass. B) A car has a smaller engine than a truck.

Is there a dark side of the moon? (note: this question can be effectively answered either yes or no, so it is important to explain your reasoning?