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pishuonlain [190]
3 years ago
14

A diver running 2.2 m/s drives out horizontally from the edge of a vertical cliff and 2.9 s

Physics
1 answer:
katen-ka-za [31]3 years ago
8 0
To determine the horizontal distance that the diver traveled before finally hitting the water, we simply multiply the speed (2.2 m/s) by the amount of time elapsed which is 2.9 s. Mathematically,
                                 horizontal distance = (2.2 m/s) x (2.9 s) 
                                                                    = 6.38 m
Thus, the answer to the question above is 6.38 m. 
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Answer:

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Explanation:

The force of gravity between the Earth and the Hubble Telescope corresponds to the centripetal force that keeps the telescope in uniform circular motion around the Earth:

G\frac{mM}{R^2}=m\frac{v^2}{R}

where

G=6.67\cdot 10^{-11} m^3 kg^{-1} s^{-2} is the gravitational constant

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A classroom is about 3 meters high, 20 meters wide and 30 meters long. If the density of air is 1.29 kg/m3, what is the mass of
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Answer:

the mass of the air in the classroom = 2322 kg

Explanation:

given:

A classroom is about 3 meters high, 20 meters wide and 30 meters long.

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what is the mass of the air in the classroom?

density = mass / volume

where mass (m) = 1.29 kg/m³

volume = 3m x 20m x 30m = 1800 m³

plugin values into the formula

  1.29 kg/m³   =  <u>      mass    </u>

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mass =  1.29 kg/m³  ( 1800 m³ )

mass = 2322 kg

therefore,

the mass of the air in the classroom = 2322 kg

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