The law of reflection states that if the angle of incidence is 81 degrees, the angle of reflection is ___ degrees.

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?