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kati45 [8]
3 years ago
5

If a person driving 130 miles per hour and hit a brick wall ? Does the brick wall hit (push) the car back ? Which Newton laws wo

uld explain this accident and why ?
Physics
2 answers:
belka [17]3 years ago
8 0

An action of push or pull on an object is force. The two bodies interact with each other. Newton's third law of motion states that every action has equal and opposite reaction. This means that if an object A exerts F amount of force on another object B, object B would also exert the same amount of force on A. when a person driving at speed 130 miles per hour hits wall, the wall would also apply an equal force on car and that would cause the damage to it.  

Anuta_ua [19.1K]3 years ago
5 0

Answer#1  

Newton's third law of movement expresses that each activity has equivalent and inverse response. This implies if an item x applies F measure of power on another article y, object y would likewise apply a similar measure of power on x. at the point when an individual driving at speed 130 miles for each hour hits divider, the divider would likewise apply an equivalent power on vehicle and that would make the harm it.  

Answer #2  

Newton's third law of movement will be connected in this situation  

this law expresses that  

each activity has a response meet in sufficiency yet  opposite in indirection.  

This implies if an item state x applies F measure of power on another article y, object y would likewise apply a similar measure of power on x

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A 25 kg block is held against a compressed spring and then the spring is allowed to decompress giving the block a velocity. The
Alex787 [66]

Answer:

h=18.05 cm

Explanation:

Given that

m= 25 kg

K= 1300 N/m

x=26.4 cm

θ= 19.5 ∘

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From energy conservation

\dfrac{1}{2}Kx^2=\dfrac{1}{2}mv^2

Kx^2=mv^2

v=\sqrt{\dfrac{kx^2}{m}}

By putting the values

v=\sqrt{\dfrac{kx^2}{m}}

v=\sqrt{\dfrac{1300\times 0.264^2}{25}}

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When block reach at the maximum height(h) position then the final speed of the block will be zero.

We know that

V_f^2=V_i^2-2gh

By putting the values

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4 0
4 years ago
Consider a sphere and a cylinder of equal volume made of copper. Both the sphere and the cylinder are initially at the same temp
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Answer: The cylinder

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Among all other solid shapes, the sphere has the smallest area for a given volume.

By experiment, the ratio of the radius of a sphere to a cylinder of equal volume is less than 1.

Recall;

That the Rate of transfer of convective heat (Q) = h × A ×change in temperature.

Where ,

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A= the cross sectional area.

As such, since the sphere has a smaller surface area relative to the cylinder, the sphere transfers heat slower than the cylinder.

Therefore, if the sphere and cylinder are exposed to convection in the same environment, then, the cylinder cools faster.

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Answer:

Energy is transformed from potential to kinetic and vice versa

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The most characteristic and real example is that of a pendulum at one end, as can be seen in the attached image.

When the pendulum is located at the top end, as shown in Figure 1, at that point the maximum potential energy will be held. Then the pendulum is released and when it passes through the reference point and its height is zero, with respect to that point, all potential energy will have become kinetic energy in the same way at this point the maximum speed of the pendulum will be set.

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