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3 years ago

12

An objects momentum depends on its

1 answer:

xz_007 [3.2K]3 years ago

5 0

Answer:

mass and it's velocity

Explanation:

Momentum can be defined as mass in motion. All objects have mass, so if an object is moving, then it has momentum which implies mass in motion. Momentum depends upon the variables mass and velocity. In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object.

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Does Solid surfaces reflect better than liquid surfaces? If why?

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It depends on what type of solid

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3 years ago

Two small metal spheres are 25 cm apaft.The spheres have equal amount of negative charge and repel each other with a force of 0.

Mars2501 [29]

Answer:

$0.5\times 10^{-6}C$

Explanation:

According to coulombs law force between two charges is given by $F=\frac{1}{4\pi \epsilon _0}\frac{Q_1Q_2}{R^2}$ here R is the distance between both the charges which is given as 25 cm

We have given force F =0.036 N

So $0.036=\frac{1}{4\pi \times 8.85\times 10^{-12}}\frac{Q^2}{(0.25^2)}$ As $\epsilon _0$ is constant which value is $8.85\times 10^{-12}$

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4 years ago

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vodomira [7]

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Explanation:

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3 years ago

One end of a steel rod of radius R = 10 mm and length L = 80cm is held in a vise. A force of magnitude F = 60kN is then applied

Alexandra [31]

Answer: 1.91*10^8 N/m²

Explanation:

Given

Radius of the steel, R = 10 mm = 0.01 m

Length of the steel, L = 80 cm = 0.8 m

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Stress on the rod, = ?

Area of the rod, A = πr²

A = 3.142 * 0.01²

A = 0.0003142

Stress = Force applied on the steel/Area of the steel

Stress = F/A

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Stress = 1.91*10^8 N/m²

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3 years ago

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padilas [110]

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Explanation:

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3 years ago

Read 2 more answers