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Damm [24]
4 years ago
9

How big is a ton? That is, what is the volume of something that weighs a ton? To be specific, estimate the diameter of a 1-ton r

ock, but first make a wild guess>: will it be 1 ft across, 3 feet, or the size of a car? (Hint: Rock has mass er volume about three times that of water, which is 1 kg per liter(10^3cm^3) or 62lb per cubic foot) ...?
Physics
1 answer:
Zepler [3.9K]4 years ago
4 0
<span>Short ton is equal to 2000 lb. A metric tonne is equal to 1000 kilograms.

T</span>o get the volume of a rock you should divide the mass (1000 kg) by the density. Assume the density is three times of water. You can assume the rock is a sphere or cube to get the approximate dimension from the volume. 

<span>The density of water is 1000 kg / m^3
</span>
Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 
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3 years ago
A 480N sphere 40.0cm in radius rolls without slipping 1200cm down a ramp that is inclined at 53 0 with the horizontal. What is t
IgorC [24]

As we know that sphere roll without slipping so there is no loss of energy in this case

so here we can say that total energy is conserved

Initial Kinetic energy + initial potential energy = final kinetic energy + final potential energy

\frac{1}{2}mv_i^2 + mgh = \frac{1}{2}mv^2 + \frac{1}{2}I\omega^2+ mgh'

as we know that ball start from rest

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height of the ball initially is given as

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h = 1200sin53 = 960 cm

also we know that

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also for pure rolling

v = r\omega

also we know that

480 = m*9.8

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now plug in all data in above equation

480*9.60 + 0 = \frac{1}{2}*49*(0.40*\omega)^2 + \frac{1}{2}*\frac{2}{5}*49*(0.40)^2\omega^2 + 0

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7 0
4 years ago
Which of the following is not true about the Law of Conservation of Energy?
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8 0
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