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masha68 [24]
2 years ago
10

A 20 kg rover is located on Mars where the acceleration due to gravity is 3.7 m/s/s.

Physics
1 answer:
Arte-miy333 [17]2 years ago
4 0

Answer:

74N

Explanation:

force = mass * acceleration

force =  20 * 3.7

force = 74N

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Air that enters the pleural space during inspiration but is unable to exit during expiration creates a condition called a. open
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The correct answer is d. tension pneumothorax.

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A sled is accelerating down a hill at a rate of 1 m s2 . If the mass of the sled is suddenly cut in half and the net force on th
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We have that F=ma from the 2nd Newton law where F is the force, m is the mass and a is the acceleration. Suppose we have that F' is the new force and m' is the new mass. Then, we have that a'=F'/m' still, by rearranging Newton's law. We are given that F'=2F and m'=m/2. Hence,
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But now, we have from F=ma, that a=F/m and we are given that a=1m/s^2.
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3 years ago
Why is it important to keep the muzzle of a firearm pointed in a safe direction, even though the firearm's safety is engaged?
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Use the facts below to answer the question: Who reaches One-Eyed Willie’s pirate ship first?
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Listen if you have to cheat for the dba thing not worth even doing that dba tbh this is very easy as I just did it in like 5 minutes it gives you everything you need even the formulas so use your f  .u .c .k. 1  .n g brain you monkey...
5 0
3 years ago
A woman walked 115 m. As she did so, her speed increased from 4.20 m/s to 5.00 m/s. How long did it take her to walk this distan
ASHA 777 [7]

Answer:

25 seconds

Explanation:

Assuming the woman is accelerating at a constant rate of a \;\;m/s^2 from the initial velocity, u=4.20 m/s, to the final velocity, v=5.00 m/s.

Let she takes t seconds to cover the distance, s=115 m.

As acceleration, a=\frac{v-u}{t}=\frac{5-4.2}{t}

\Rightarrow at=0.8\cdots(i)

Now, from the equation of motion

s=ut+\frac 12 at^2

\Rightarrow s=ut+\frac 12 at(t)

\Rightarrow 115=4.2t+\frac 12 \times 0.8 t [ from equation (i)]

\Rightarrow 115=(4.2+0.4)t

\Rightarrow t= 115/4.6 = 25 seconds.

Hence, she takes 25 seconds to walk the distance.

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3 years ago
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