3 years ago

The Sun appears to move across the sky during the day. The best explanation for this apparent motion is that Earth is

Physics

2 answers:

Harrizon [31]3 years ago

5 0

Answer:

Explanation:

Effectus [21]3 years ago

4 0

Answer: C

Explanation:

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A well-thrown ball is caught in a well-padded mitt. If the deceleration of the ball is 2.10×104 m/s2 , and 1.85 ms (1 ms = 10−3

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Answer:

u = - 38.85 m/s^-1

Explanation:

given data:

acceleration = 2.10*10^4 m/s^2

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from equation of motion we have following relation

v = u +at

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0 = u + (21 *1.85)

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3 years ago

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g A box having mass 0,5kg is placed in front of a 20 cm compressed spring. When the spring released, box having mass m1, collide

vagabundo [1.1K]

Answer:Expression given below

Explanation:

Given mass of spring $\left ( m_1\right )=0.5 kg$

Compression in the spring $\left ( x\right )=20 cm$

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potential energy stored in spring =Kinetic energy of Block $\left ( m_1\right )$

$\frac{1}{2}Kx^2=\frac{1}{2}m_1v^2$

$v=x\sqrt{\frac{k}{m_1}}$

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$v_0=\frac{m_1}{m_1+m_2}v$

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3 years ago