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vladimir1956 [14]
3 years ago
6

PLEASE HELP!!!! Thank you!

Physics
1 answer:
V125BC [204]3 years ago
6 0

it would be a chain reaction and a wave

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Explain what 'vibrating' means.
drek231 [11]

Answer:

Vibrating means to move quickly to and fro.

Explanation:

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1) Which of the following statements about physical models is not true?
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3 years ago
I NEED HELP I AM SO CONFUSED, WILL GIVE BRAIN.
MakcuM [25]

Answer:

210

Explanation:

A ball rolls horizontally off the cliff at a speed of 30 m/s. It takes 7 seconds for the ball to hit the ground. What is the height of the cliff and the horizontal distance traveled by the ball?

S = (1/2)*9.8 m/s^2 * 7^2 = 240.1 m if the ball is very dense so air resistance, and therefore terminal velocity, can be ignored.

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2 years ago
A horizontal wire is hung from the ceiling of a room by two massless strings. The wire has a length of 0.11 m and a mass of 0.01
AnnZ [28]

Answer:

Explanation:

The magnetic force acting horizontally will deflect the wire by angle φ from the vertical

Let T be the tension

T cosφ = mg

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Tsinφ = BiL  , where B is magnetic field , i is current and L is length of wire

Dividing

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= 1.79

φ = 61° .

Tension T = mg / cosφ

= .01 x 9.8 / cos61

= .2 N .

5 0
3 years ago
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