Which of the following is a star early in its life?

A. Protostar

B. Main sequence star

C. White dwarf

D. Red giant

If equal force were applied to a basketball and a baseball, which would travel further, according to Newton's 2nd law of motion?

Why is it impossible to "defy gravity"? a. There is no gravity. b. You can't defy gravity without going to another planet. C. Gravitational force exists every place where there are two objects. d. Nothing has enough force to resist gravity.

Now that economic times are bad, some people blame immigrants for taking jobs. This is an example of: A. Scapegoat Theory B. Social Facilitation C. Prejudice D. Mere Exposure Effect

Imagine two billiard balls on a pop table. Ball A has a mass of 7 kilograms and ball B has a mass of 2 kilograms.

What net external force is required to give a 27.6 kg suitcase an acceleration of 3.3 m/s^2 to the right?

An example of renewable energy resource is ... A - uranium B - Wind C - natural gas

The power of a 1.5-volt alkaline cell varies with the number of hours of operation. A brand new D-cell can deliver as much as 13 A through a copper wire connected between terminals. Determine the power of a brand new D-cell.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.