What causes a star to shine brightly?

the color that is produced

the energy that is released

the amount of gravity that is present

the types of elements that are present

Which variable is inversely related to force? A) Charge (q) B) Radius (r) C) k

You sit at the middle of a large turntable at an amusement park as it begins to spin on nearly frictionless bearings, and then spins freely.

A guitar string is plucked. What best describes the formation and transmission of the sound wave?

1. The thermal convection that drives plate motion is caused by O gravitational motions O subduction O sea-floor spreading O an unequal distribution of heat

Consider an electron and a proton separated by a distance of 4.5 nm. (a) what is the magnitude of the gravitational force between them? 5.1128e-20 incorrect: your answer is incorrect. n (b) what is the magnitude of the electric force between them?

How much power is reqired to lift a 10-n box 2 meters

Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. A 200 kg dolphin leaps straight up to a height of 7.8 m.

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?