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eduard
3 years ago
9

What is the mass of a falling rock if it produces a force of 147 N

Physics
1 answer:
Vikentia [17]3 years ago
3 0
Newtons (force)=Mass * acceleration
147=Mass (in Kilograms) * 9.8m/s^2
147/9.8=15

the mass is 15kg
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Answer:

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T=\frac{1}{f}

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In this problem, f = 262 Hz, so the period if this sound wave is

T=\frac{1}{262 Hz}=3.82\cdot 10^{-3} s=3.82ms

4 0
3 years ago
A car is driving away from a crosswalk. The formula d = t 2 + 2 t expresses the car's distance from the crosswalk in feet, d , i
Ede4ka [16]

Answer:

1) No, the car does not travel at constant speed.

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In order to know if the car is traveling at constant speed we need to derive the given formula. That way we get speed as a function of time:

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4 0
4 years ago
Can you guys please help with this question?
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3 years ago
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4 0
3 years ago
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The same element with different molecular structures are called?
jonny [76]
The answer is allotropes. Hope this helps. Have a great day.
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3 years ago
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