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nirvana33 [79]
3 years ago
6

Complete the sentence by typing the word that correctly fills the blank Fossil fuels are formed gradually over _______

Physics
1 answer:
sattari [20]3 years ago
5 0
Fossil fuels are formed gradually over time
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Which has more momentum: a 20,000 kg cement truck traveling at 5 m/s or a 1000 kg race car traveling at 90 m/s
Maurinko [17]

Hi there!

Recall the equation for momentum:
\large\boxed{p = mv}

p = linear momentum (kgm/s)
m = mass (kg)

v = velocity (m/s)

We can calculate each object's momentum and compare.

Cement truck:
p = 20000 \cdot 5 = 100000kg\frac{m}{s}

Race car:
p = 1000 \cdot 90 = 90000 kg\frac{m}{s}}

<u>Since 100,000 > 90,000, the cement truck has the greater momentum.</u>

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3 years ago
Find the velocity of a dropped brick after 5.0 s using v =a ∆ t and a = - 9.8 m/s^2
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Answer:

49

Explanation:

9.8 x 5 = 49

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Answer:200×10^5 meters

Explanation:

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I think it is gravity 
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