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Gemiola [76]
2 years ago
7

What is specific gravity?

Physics
1 answer:
Dovator [93]2 years ago
7 0

Answer:

Specific gravity, also called relative density, is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume

Explanation: Hope this helps also looking these questions up could help :)

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The moon is closest to earth at ____.
Paraphin [41]
The point of the orbit closest to Earth<span> is called perigee, while the point farthest from </span>Earth<span> is known as apogee</span>
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3 years ago
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A block of mass m = 1.5 kg is released from rest at a height of H = 0.81 m on a curved frictionless ramp. At the foot of the ram
kogti [31]

Answer:

0.31 m

Explanation:

m = mass of the block = 1.5 kg

H = height from which the block is released on ramp = 0.81 m

k = spring constant of the spring = 250 N/m

x = maximum compression of the spring

using conservation of energy

Spring potential energy gained by spring = Potential energy lost by block

(0.5) k x² = mgH

(0.5) (250) x² = (1.5) (9.8) (0.81)

x = 0.31 m

7 0
3 years ago
How did Koch choose candidates?​
Salsk061 [2.6K]
They choose the ones who talk the most and could be seen as leaders
4 0
2 years ago
Which device is designed to convert chemical energy into kinetic energy ?
irakobra [83]

Answer:

A.C. Generator

Explanation:

The device designed to convert chemical energy into kinetic energy is an A.C generator.

The generator uses fuel to cause the mechanical motion of the pistons in the device.

  • Chemical energy is a form of energy found between the bonds of compounds and molecules.
  • When the bonds are broken, energy is released.
  • The heat energy produced drives pistons and cause mechanical motion of the body.
  • This is a form of kinetic energy which causes the motion of a body.
7 0
2 years ago
A 0.05-kg car starts from rest at a height of 0.95 m. Assuming no friction, what is the kinetic energy of the car when it reache
prohojiy [21]
Considering conservation of mechanical energy we have:
K+U (start)= K+U (end)
Where:
K=kinetic energy=\frac{1}{2}m v^{2}
U=potential energy=mgh
So:
0.05*0.95*9.81+0 (start) = 0+K (end)
K (end)=0.5 Joules
6 0
3 years ago
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