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ArbitrLikvidat [17]
3 years ago
8

Why nucleus density is constant. Explain

Physics
1 answer:
tiny-mole [99]3 years ago
3 0

Answer:this is because Of The balance between the two forces that rule the nucleus

Explanation:

This is because Of The balance between the two forces that rules the nucleus.the strong nuclear force and the electrostatic force

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A vertical steel beam in a building supports a load of 6.0×10⁴. If the length of the beam is 4.0m and it's cross-sectional area
Furkat [3]

Answer:

DL = 1.5*10^-4[m]

Explanation:

First we will determine the initial values of the problem, in this way we have:

F = 60000[N]

L = 4 [m]

A = 0.008 [m^2]

DL = distance of the beam compressed along its length [m]

With the following equation we can find DL

\frac{F}{A} = Y*\frac{DL}{L} \\where:\\Y = young's modulus = 2*10^{11} [Pa]\\DL=\frac{F*L}{Y*A} \\DL=\frac{60000*4}{2*10^{11} *0.008} \\DL= 1.5*10^{-4} [m]

Note: The question should be related with the distance, not with the diameter, since the diameter can be found very easily using the equation for a circular area.

A=\frac{\pi}{4} *D^{2} \\D = \sqrt{\frac{A*4}{\pi} } \\D =  \sqrt{\frac{0.008*4}{\\pi } \\\\D = 0.1[m]

3 0
3 years ago
Which letter explains why no machine is 100 percent efficient.
kondaur [170]

Answer:

A

Explanation:

Think about rubbing your hands together- the friciton produces heat

4 0
2 years ago
What’s the net force of an object being throwing into the air
timurjin [86]

Answer: forces acting on an object being thrown into the air is gravity and possibly air resistance

Explanation:

4 0
3 years ago
Explain why atmospheric pressure changes as atmospheric depth changes
Pavel [41]

The force of the collisions creates pressure on the container. ... Explain why atmospheric pressure changes as depth changes. Atmospheric pressure increases as depth increases because at lower levels of the atmosphere, there is more air above that is being pulled down by gravitational force.

7 0
3 years ago
How can doing work on an object increase its kinetic energy?
Lyrx [107]

Answer:If the object's speed increases.

Explanation:

If the object's speed increases, then its kinetic energy will increase. If the kinetic energy increases, the change in kinetic energy will be positive.

6 0
3 years ago
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