2 years ago

Help please I am stuck

Physics

1 answer:

alex41 [277]2 years ago

6 0

Answer:

Explanation:

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What is the economic system in the united states?

AnnyKZ [126]

Answer:

A. Capitalist economy

Explanation:

The United States is a capitalist economy. Hope this helps, thank you !!

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3 years ago

What is the frequency of a wave with speed 3m/s and wavelength 6m?

Ugo [173]

Answer:

f = 0.5 Hz

Explanation:

frequency = f

wave length = l

speed of wave = v

f = v/l → f = 3/6 = ½ = 0.5 Hz

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2 years ago

Can you answer this please i’ve been stuck on it for a while

sp2606 [1]

The kinetic energy depends on several things like how cute I am

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4 years ago

Which of the following facts about electromagnetic radiation has made it possible for scientists to gather information about Ven

sukhopar [10]

Answer:

C. Infrared and radio waves can pass through very dense materials without interference.

Explanation:

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3 years ago

An ideal incompressible fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twice its original radius, what is the

grandymaker [24]

Answer:

d) 3 m/s

Explanation:

As we know by equation of continuity

$A_1v_1 = A_2v_2$

here we have

$A_1 = \pi r^2$

$A_2 = \pi (2r)^2$

$A_2 = 4\pi r^2$

now from above equation we have

$\pi r^2 v_1 = 4\pi r^2 v_2$

$v_2 = \frac{v_1}{4}$

here we have

$v_1 = 12 m/s$

$v_2 = 3 m/s$

5 0

3 years ago