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Finger [1]
3 years ago
11

A force acts on an object. Which option describes an action that could prevent the object from moving? (1 point)

Physics
1 answer:
hram777 [196]3 years ago
8 0
C. because if you push a ball on one side and on the other side with the same amount of force at the same time it won’t move.
Hope this helps
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during a crash, the acceleration was less than 30g. Calculate the force on a 70 kg person accelerating at this rate.
Igoryamba

Answer:

less than 20580 N

Explanation:

According to the newton's second law of motion

Force = mass * acceleration

(assuming gravitational acceleration =9.8 m/s2 )

acceleration = 30*9.8 = 294 m/s2

acting Force = 70 * 294

                     = 20580 N

Since the acceleration was less than 30g  , acting force should also be less than 20580 N

4 0
3 years ago
In what form is carbon found in the atmosphere?
svlad2 [7]

Answer:

Carbon is found in the atmosphere mostly as carbon dioxide.

Explanation:

4 0
3 years ago
A man stands still on a moving walkway that is going at a speed of 0.2 m/s to
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Answer:

0.2 m/s east

Explanation:

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7 0
3 years ago
A block is given a very brief push up a 20.0° frictionless incline to give it an initial speed of 12.0 m/s. (a) how far along th
shtirl [24]
The incline is frictionless, this means we can use the conservation of energy: the initial kinetic energy of the block
K= \frac{1}{2}mv^2
is converted into gravitational potential energy
U=mgh
where h is the height reached by the block as it stops. By equalizing the two formulas, we get
\frac{1}{2} mv^2=mgh
h= \frac{v^2}{2g}= \frac{(12.0 m/s)^2}{2(9.81 m/s^2)} =7.3 m

However, this is the maximum height reached by the block. The distance along the surface of the plane is given by:
d= \frac{h}{\sin 20^{\circ}}= \frac{7.3 m}{\sin 20^{\circ}}=21.3 m
4 0
4 years ago
What is the role of pressure and dissolved gases in eruptions?.
Katarina [22]

Answer:

Explanation:

Magma contains dissolved gases, which provide the driving force that causes most volcanic eruptions. As magma rises towards the surface and pressure decreases, gases are released from the liquid portion of the magma (melt) and continue to travel upward, and are eventually released into the atmosphere.

8 0
2 years ago
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