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zzz [600]
3 years ago
12

How many joules of work are done on a box when a force of 25 N pushes it 3 m?

Physics
1 answer:
HACTEHA [7]3 years ago
8 0

Answer:

i don't know

Explanation:

sorry so much

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How much work is accomplished when a force of 300N pushes a box across the floor for a distance of 100 meters?
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So the correct ans is B.

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3 years ago
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A vertical spring stretches 9.6 cm when a 1.3 kg block is hung from its end. (a) Calculate the spring constant. This block is th
tatiyna

Answer:

F = - K x

a) K = 1.3 kg * 9.8 m/s^2 / .096 m = 133 kg/sec^2

b)  ω = (K/m)^1/2     angular frequency of SHM

ω = (133 / 1.3)^1/2 = 10.1 / sec

f = 2 π ω = 6.28 * 10.1 / sec = 63.5 / sec

P = 1/f = .0157 sec

5 0
3 years ago
What is the speed of light? What is the speed of sound?
Rasek [7]

Answer:

speed of light simulating traveling at the speed of light. Speed of light, speed at which light waves propagate through different materials. In particular, the value for the speed of light in a vacuum is now defined as exactly 299,792,458 metres per second

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8 0
3 years ago
Which statement best describes how light waves travel in a uniform medium?
Zanzabum
The statement which best describes how light waves travel in an uniform medium is in straight lines. The correct answer will be A. 
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3 years ago
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In a building with 10.000 cubic feet where the air changes every two hours, what the rate of air change? A. 167.7 cfm B. 83.3 cf
Naya [18.7K]

Answer:

Flow rate of air is given as 83.33 cubic feet per minute

Explanation:

As we know that total volume of the air flow is given as

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also we know that total time is

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now we have flow rate given as

Q = \frac{V}{t}

Q = \frac{10000}{120}

Q = 83.3 cf/m

3 0
3 years ago
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