The correct answer is: Option (A) 75 J
Explanation:
First, be careful with the units here. As you can see it is mentioned that there is a 50N box. It means that the weight (<em>mg</em>) of the box is given as the unit is <em>Newton</em>, not its mass (which is in kg).
As,
Potential-energy = mass * acceleration-due-to-gravity * height
PE = m*g*h --- (A)
In equation (A), mg is actually the weight of the box, which is given.
mg = 50N
h = height = 1.5m
Plug the values in equation (A):
PE = 50 * 1.5 = <em>75 J (Option A)</em>
D = 40.5 g / 15.0 mL<span>d = 2.70 g/mL</span>
Answer:
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<u><em>Answer:</em></u>
<u><em>Explanation:</em></u>
<em> </em><em> V= V* T</em>
<em>V= 116m /s * 10s</em>
<em>V= 1,160 m</em>
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I think that this question was asked by a bot made by brainly.
