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stealth61 [152]

3 years ago

14

A sound wave with a wavelength of 3200 cm travels 7,712 meters in 16 seconds. What is the frequency of the wave?

1 answer:

tester [92]3 years ago

8 0

Answer:

frequency=1/time period

=1/16 seconds

=0.0625 Hz

Explanation:

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soaring birds and glider pilots can remain aloft for hours without expending power. Discuss why this is so.

vekshin1

Answer:

Since their wings and body develop the drag. When there is warm air then they expand their wings. Since,soaring birds and glider pilots have no engine, they always maintain their high speed to lift their weight in air for hours without expending power by convection

Explanation:

5 0

3 years ago

What is the momentum of a man of mass 10kg when he walks with a uniform velocity of 2m/s.

Stolb23 [73]

Answer:

$Momentum(p) = 20kgm/s$

Explanation:

Given

Mass = 10kg

Velocity = 2m/s

Required

Calculate the momentum of the man

Momentum is calculated as thus

$Momentum(p) = Mass(m) * Velocity(v)$

or

$p = mv$

So; to solve this question; we simply substitute 10kg for mass and 2m/s for velocity in the above formula;

The formula becomes

$Momentum(p) = 10kg * 2m/s$

$Momentum(p) = 10 * 2 * kg * m/s$

$Momentum(p) = 20kgm/s$

Hence, the momentum of the man is $20kgm/s$

5 0

3 years ago

If the Earth rotated more slowly about its axis, your apparent weight would

disa [49]

<span>If the Earth rotated more slowly about its axis, your apparent weight would
A) increase.
B) decrease.
C) stay the same.
D) be zero.

</span>A) increase.

8 0

3 years ago

Please help me answer this question

Pavel [41]

It can either be all of them or just 1 and 3

4 0

3 years ago

The climate of the earth throughout history has always _____.

Vlad [161]

Answer:

The climate of the earth throughout history has always been <em><u>fluctuated between hot and cold periods. </u></em>

7 0

4 years ago

Read 2 more answers