3 years ago

When atoms bond together, they make:

Physics

2 answers:

trapecia [35]3 years ago

8 0

When atoms bond together they make electrons

Aneli [31]3 years ago

6 0

When atoms bond together they make molecules.
all the best

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100kg * 9.8N/kg * 10m = 9800

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Select the correct answer.

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A skydiver of 75 kg mass has a terminal velocity of 60 m/s. At what speed is the resistive force on the skydiver half that when

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Explanation:

Given;

mass of skydiver, m = 75 kg

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Drag force is directly proportional to square of terminal velocity.

$F_D = kV_T^2$

Where;

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When the new drag force is half of the original drag force;

$F_D_2 = \frac{F_D_1}{2} \\\\\frac{F_D_1}{V_{T1}^2} = \frac{F_D_2}{V_{T2}^2} \\\\\frac{F_D_1}{V_{T1}^2} = \frac{F_D_1}{2V_{T2}^2} \\\\\frac{1}{V_{T1}^2} = \frac{1}{2V_{T2}^2}\\\\2V_{T2}^2 = V_{T1}^2\\\\V_{T2}^2= \frac{V_{T1}^2}{2} \\\\V_{T2}= \sqrt{\frac{V_{T1}^2}{2} } \\\\V_{T2}= \frac{V_{T1}}{\sqrt{2} } \\\\V_{T2}= 0.7071(V_{T1})\\\\V_{T2}= 0.7071(60 \ m/s)\\\\V_{T2}= 42.426 \ m/s$

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Explanation:

Below is an attachment containing the solution.

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