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2 years ago

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A sound wave is produced by a musical instrument for 0.40 second. If the frequency of the wave is 370 hertz, how many complete w

aves are produced in that time period? *
A) 200 waves
B)150 waves
C)100 waves
D) 50 waves

1 answer:

natta225 [31]2 years ago

7 0

E⁣⁣⁣xplanation i⁣⁣⁣s i⁣⁣⁣n a f⁣⁣⁣ile

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Why should flexibility exercises be done in conjunction with strength-building exercises?

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<span>Flexibility exercises should be done in conjunction with strength-building exercises because:

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2 years ago

A lion has a mass of 45 kg. Answer the following questions about it, using correct units. a. The lion runs at a speed of 14.2 m/

Eva8 [605]

A) The kinetic energy of an object is given by:
$K= \frac{1}{2}mv^2$
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$K= \frac{1}{2}mv^2= \frac{1}{2}(45 kg)(14.2 m/s)^2=4537 J$

b) the increase in gravitational potential energy of the lion is given by:
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2 years ago

The loudness of a sound is determined by the __________, or height, of the sound wave.

balandron [24]

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3 years ago

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A ball is tossed vertically upward. When it reaches its highest point (before falling back downward) Group of answer choices the

nignag [31]

Answer:

the velocity is zero, the acceleration is directed downward, and the force of gravity acting on the ball is directed downward

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