3 years ago

Conversion: The weather report this morning stated there is a thick fog in

Physics

1 answer:

tangare [24]3 years ago

6 0

Answer: 0.1524 km

Explanation:

We have to convert $500 ft$ to kilometers, and we can do it knowing $1 ft=0.30 48 m$ and $1 km=1000 m$ :

$500 ft \frac{0.3048 m}{1 ft} \frac{1 km}{1000 m}$

Hence:

$500 ft=0.1524 km$

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Answer:

Explanation:

Given

Ship A velocity is 40 mph and is traveling 35 west of north

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$=20\times 2=40 miles Its position vector[tex]r_B=40sin80\hat{i}+40cos80\hat{j}$

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$r_{AB}=\left ( -40sin80-80sin35\right )\hat{i}+\left ( 80cos35-40cos80\right )\hat{j}$

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Velocity of A

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Velocity of B

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Velocity of A w.r.t B

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$v_{AB}=\left ( -20sin80-40sin35\right )\hat{i}+\left ( 40cos35-20cos80\right )\hat{j}$

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The centers of two 15.0 kg spheres are separated by 3.00 m. The magnitude of the gravitational force between the two spheres is

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we have to use newtons law of gravitation which is
F=GMm/r^2
G=6.67 x 10^-11N kg^2/m^2
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