3 years ago

What are two things that might be found at the site of excavation?

Physics

1 answer:

denis23 [38]3 years ago

3 0

A fire or carbon dioxide ora main break

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lisabon 2012 [21]

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3 years ago

An electrical motor spins at a constant 1975.0 rpm. If the armature radius is 7.112 cm, what is the acceleration of the edge of

stealth61 [152]

Answer:

Option D is the correct answer.

Explanation:

Since value of angular acceleration is constant, the body has only centripetal acceleration.

Centripetal acceleration

$a=\frac{v^2}{r}=\frac{(r\omega )^2}{r}=r\omega ^2$

We have radius = 7.112 cm = 0.07112 m

Frequency, f = 1975 rpm = 32.92 rps

Angular frequency, ω = 2πf = 2 x π x 32.92 = 206.82 rad/s

Substituting in centripetal acceleration equation,

$a=r\omega ^2=0.07112\times 206.82^2=3042.17m/s^2$

Option D is the correct answer.

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4 years ago

Please help me , I also have to show work on paper

kramer

Answer:

Choose B

Explanation:

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3 years ago

A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let us take it that the force act

MA_775_DIABLO [31]

Answer:

cos 0 = 1.

Fs = 7×8 = 56 J

Explanation:

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Mr. Mann explained that when light passes from air into the water, the light waves bend, or ___________, and the pencil appears

posledela

Answer:

the light waves bend or REFRACT

Explanation:

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