In this figure a tuning fork is struck and creates disturbances in the surrounding air. Describe the motion of the molecules in the figure
a. Each molecule moves back and forth from the left to the right.
b. The molecules start at the left and all eventually end up to the right.
c. The molecules move back and forth from left to right, on average, but their random motion causes them also to move in any direction.
d. The molecules move either back and forth from left to right on average, or up and down.
e. The molecules move either back and forth from left to right on average, as well as in and out of the page.
c
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The energy attributed to an object by virtue of its motion is known as ________
A) radiative energy B) kinetic energy C) potential energy D) mass-energy
A racecar goes around a 200 m radius curve at a constant speed of 40 m/s. Its acceleration is __________
Fill in the blank(s) with correct word
Which of the following has the largest momentum relative to Earth's surface?
A) a tightrope walker crossing Niagara Falls B) a pickup truck speeding along a highway C) a Mack truck parked in a parking lot D) the Science building on campus E) a mouse running across your room
Electric potential decreases when moving farther from positive charges or nearer to negative charges
Indicate whether the statement is true or false