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mariarad [96]
2 years ago
11

Which statement correctly describes momentum? It is a scalar quantity because it involves magnitude only. It is a scalar quantit

y because it involves magnitude and direction. It is a vector quantity because it involves magnitude and direction. It is a vector quantity because it involves magnitude only.
Physics
1 answer:
Llana [10]2 years ago
4 0
<span>It is a vector quantity because it involves magnitude and direction.</span>
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A 0.250 kg block on a vertical spring with spring constant of 4.45 ✕ 103 N/m is pushed downward, compressing the spring 0.080 m.
Elza [17]

Answer:h=5.81 m

Explanation:

Given

Mass of block(m)=0.250 kg

Spring Constant k=4.45\times 10^3 N/m

Initial elongation =0.080 m=8 cm

Thus Initial Potential Energy stored =Final Potential Energy stored in Block

P_i=\frac{kx^2}{2}

P_i=\frac{4.45\times 10^3\times 64\times 10^{-4}}{2}=14.24 J

P_f=mgh=0.25\times 9.8\times h

P_i=P_f

14.24 =0.25\times 9.8\times h

h=\frac{14.24}{0.25\times 9.8}=5.81 m

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A physicist hangs a 150-g object on a spring whose spring constant is a value of 13.22 Newtons/meter and has a spring force of 2
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Explanation:

and the reason why the answer is this and that is because the answer is that

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