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Taya2010 [7]
2 years ago
8

Which has more momentum? *

Physics
2 answers:
inessss [21]2 years ago
7 0

Answer:

4 kg at 30 m/s

Explanation:

comparing in pair, the 3rd is more than the 1st, and the 4th is more than the 2nd, so it boils down to the lasts two. calculate, and im pretty sure you get 4 kg at 30 m/s...

faust18 [17]2 years ago
5 0

Momentum of a ball of mass 2 kg moving at 30 m/s = 2 kg × 30 m/s = 60 kg m/s

Momentum of a ball of mass 3 kg moving at 20 m/s = 3 kg × 20 m/s = 60 kg m/s

Momentum of a ball of mass 4 kg moving at 30 m/s = 4 kg × 30 m/s = 120 kg m/s

Momentum of a ball of mass 5 kg moving at 20 m/s = 5 kg × 20 m/s = 100 kg m/s

So, highest momentum is of a ball of mass 4 kg moving at 30 m/s (120 kg m/s).

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An example of a mechanical wave is a sound wave
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A spring is stretched from equilibrium to 0.90 m and the work done on the spring equals 18j what is the value of the spring cons
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18 = 1/2*k*0.9*0.9
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Which equation is used to calculate the electric potential in an electric field from a point charge? V = kq over d squared V = k
Contact [7]

Answer:

The answer is V =delta U over q

Explanation:

Electric potential is defined as the magnitude of the electric field through the potential energy that a charge would have if placed at that point. Mathematically, the potential is defined with the following expression:

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where:

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4 0
2 years ago
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Dont have a question rn
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you have gay

Explanation:

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5 0
2 years ago
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A 22.8 kg rocking chair begins to slide across the carpet when the push reaches 57.0 N. What is the coefficient of static fricti
vfiekz [6]

Answer:

0.255

Explanation:

The following data were obtained from the question:

Force (F) = 57 N

Mass (m) = 22.8 Kg

Coefficient of static friction (µ) =...?

Next, we shall determine the normal reaction (R). This is illustrated below:

Mass (m) = 22.8 Kg

Acceleration due to gravity (g) = 9.8 m/s²

Normal reaction (R) =?

R = mg

R = 22.8 x 9.8

R = 223.44 N

Finally, we can obtain the coefficient of static friction (µ) as follow:

Force (F) = 57 N

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Divide both side by 223.44

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Therefore, the coefficient of static friction (µ) is 0.255.

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3 years ago
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