2 years ago

2. Which is a possible unit of mass? gram liter meter

Physics

1 answer:

Pachacha [2.7K]2 years ago

4 0

Answer:

Gram

Explanation:

Meter is a unit used to measure length and liter is used to measure liquids therefore using process of elimination the answer has to be gram

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You drop a rock down a well that is 5.4 m deep. How long does it take the rock to hit the bottom of the well?

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Equation of motion:

$y_{f}=y_{o}+v_{o}t+ \frac{1}{2} at^{2}$

Since initial velocity is zero, the second term goes away:

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$\frac{2(5.4m) }{9.81 \frac{m}{ s^{2} } } = t^{2}$

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Suppose a cart with no fans has a starting velocity of 2 m/s. What will be the velocity of the cart when it reaches the wall?

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Explanation:

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