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kobusy [5.1K]
3 years ago
13

Calculate the speed for a car that went a distance of 254 km in 4 hours

Physics
1 answer:
quester [9]3 years ago
5 0

Answer:

speed = 63.5 km/hr

Explanation:

let me know if that works

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A plastic bag is massed. It is then filled with a gas which is insoluble in water and massed again. The apparent weight of the g
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The actual weight of the gas = apparent weight + weight.

The actual weight = W_{A} + W

Given that a plastic bag is massed. It is then filled with a gas which is insoluble in water and massed again.

If the apparent weight of the gas is the difference between these two masses, then let the apparent weight = W_{A}

The gas is squeezed out of the bag to determine its volume by the displacement of water. Since

density = mass / volume

The density of water is 1000 kg/m^{2}

we can get the mass of the gas by making m the subject of the formula.

W = mg

The actual weight of the gas = apparent weight + weight

That is,

The actual weight =  W_{A} + W

Learn more about density here: brainly.com/question/406690

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How do skiers slide across the ice?
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Answer: A device records the time it takes sound waves to travel from the surface to the ocean floor and back again. Sound waves travel through water at a known speed. Once scientists know the travel time of the wave, they can calculate the distance to the ocean floor.

Explanation:

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