What kind of medium does ocean waves have

The factor being changed by the person doing the experiment in a controlled study is called the ... A) data. B) controlled variable. C) dependent variable. D) independent variable.

You are a geologist studying the electrical field on a given region. You find that the electric field is vertical and perpendicular to the surface and has a value of 81 N/C.

Which of the following is closest to the speed of sound in air at sea level? a. 3 m/s b. 30 m/s c. 330 m/s d. 3300 m/s

The amount of kinetic energy a moving object has depand on its

One of the great dangers to mountain climbers is an avalanche, in which a large mass of snow and ice breaks loose and goes on an essentially frictionless "ride" down a mountainside on a cushion of compressed air. The acceleration of gravity is 9.

Assume that a friend hands you a heavy book to hold as he turns the combination lock on his locker. Which of you does more work?

A tube, open at only one end, is cut into two shorter (nonequal) lengths. The piece that is open at both ends has a fundamental frequency of 422 Hz, while the piece open only at one end has a fundamental frequency of 666 Hz.

Table tennis the path of a table-tennis ball after being hit and hitting the surface of the table can be modeled by the function h=-4.9t (t-0.42) where h is the height in meters above the table and t is the time in seconds.

A coat rack weighs 65.0 lbs when it is filled with winter coats and 40.0 lbs when it is empty. The base of the coat rack has an area of 452.4 in2.

An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time?