3 years ago

If matter cannot be created nor destroyed where did the matter in the univerce com from ???????

Physics

1 answer:

Fynjy0 [20]3 years ago

5 0

i have no idea

I don't even know how we are here

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(10%) Problem 10: A 7.25-kg bowling ball moving at 9.85 m/s collides with a 0.875-kg bowling pin, which is scattered at an angle

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Answer

given,

mass of bowling ball = 7.25 Kg

moving speed of the bowling ball = 9.85 m/s

mass of bowling in = 0.875 Kg

scattered at an angle = θ = 21.5°

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angle of the bowling ball

$tan \theta_1 = \dfrac{-[m_2v_2Sin \theta_2]}{m_1v_1 - (m_2v_2cos \theta_2)}$

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$tan \theta_1 = 0.0536$

$\theta_1 =-3.066^0$

b) magnitude of final velocity

$v = \dfrac{-m_2v_2sin\theta_2}{m_1 sin\theta_1}$

$v = \dfrac{-0.875 \times 10.5 sin21.5^0}{7.25 sin(-3.066^0)}$

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3 years ago

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