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Lorico [155]
3 years ago
6

A6 kg mass moving at 10m/s collides with a 4 kg mass moving in the

Physics
1 answer:
Nat2105 [25]3 years ago
4 0

Answer:

Explanation:

mdeemmkdkwdmwdmw

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<span>(20 cm)/(5 sec) = (0.20 meters)/(5 seconds) 
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A father places his daughter in a swing that is 0.60\,\text{m}0.60m0, point, 60, start text, m, end text above ground. Then he r
schepotkina [342]

This question involves the concepts of the law of conservation of energy and kinetic energy.

The girl's fastest speed is "3.7 m/s".

According to the law of conservation of energy, the girl will have the fastest speed at mean position, which will be calculated as follows:

Loss in Potential Energy = Gain in Kinetic Energy

mg\Delta h=\frac{1}{2}mv^2\\\\v=\sqrt{2g\Delta h}

where,

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g = acceleration due to gravity = 9.81 m/s²

Δh = change in height = 1.3 m - 0.6 m = 0.7 m

Therefore,

v=\sqrt{2(9.81\ m/s^2)(0.7\ m)}

<u>v = 3.7 m/s</u>

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Learn more about the Law of Conservation of Energy here:

brainly.com/question/381281?referrer=searchResults

5 0
2 years ago
What does the subscript 2 indicate in the compound MgCl2?
tresset_1 [31]
It means there are two chlorine molecules and there is only one magnesium molecule (because no subscript really just means there is an invisible 1 that isn't listed).
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3 years ago
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What current flows when a 35 v potential difference is imposed across a 1.4 kω resistor?
svetlana [45]

Current  =  (voltage) / (resistance)

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A gram molecule<span> of a </span>gas<span> at </span>127<span>°C </span>expands isothermally until its volume<span> is </span>doubled<span>. </span>Find<span> the </span>amount<span>of </span>work done<span> and </span>heat absorbed<span>.</span>
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3 years ago
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