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finlep [7]
3 years ago
11

If a car was cruising down the highway at 80 km/hr, how fast would the people inside the car be traveling?

Physics
2 answers:
wolverine [178]3 years ago
6 0
Because the people in the car are attached to the vehicle, the people inside the vehicle are going the same speed as the vehicle.

Hope this helps! :)
luda_lava [24]3 years ago
3 0
The people inside the car are at rest (speed = zero) relative to the car, moving 80 km/hr relative to the pavement, and slightly slightly less relative to a worm slithering on the road in the same direction as the car.
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What is the density of a piece of quartz with a mass of 30g and a volume of 6cm^3
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Answer:

\boxed {\boxed {\sf d= 5 \ g/cm^3}}

Explanation:

Density can be found by dividing the mass by the volume.

d=\frac{m}{v}

The mass of the quartz is 30 grams and the volume is 6 cubic centimeters.

m=30 \ g \\v= 6 \ cm^3

Substitute the values into the formula.

d=\frac{30 \ g}{6 \ cm^3}

Divide.

d= 5 \ g/cm^3

The density of this piece of quartz is 5 grams per cubic centimeter.

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