3 years ago

How does momentum conservation work for a rocket firing its engines to speed up in deep space?

Physics

1 answer:

Mashutka [201]3 years ago

3 0

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The specific gravity of a product can be found on the material safety data sheet. how do you know if a product will sink in wate

Kryger [21]

Specific gravity is the ratio between the substance's density and the density of water. Being a ratio of dimensions with same units of measure, this value is unitless.

The substance or objects sinks in water if its density is greater than that of water. On the other hand, it floats if its density is lesser compared to that of water.

Having said so, the substance or object sinks in water if the specific gravity is greater than 1 and floats if the specific gravity is lesser than 1.

sinks: SG > 1
floats: SG < 1

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3 years ago

A bag of sugar weights 20 N on the earths surface. If you double the distance from the center of the earth, the bag now weighs w

elena-s [515]

I have no idea that’s a hard one

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3 years ago

Displacement vectors of 3 m and 5 m in the same direction combine to make a displacement vector that is _____ in magnitude.

Alona [7]

The correct answer is 8 meters.

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4 years ago

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m_a_m_a [10]

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3 years ago

Consider a light, single-engine airplane such as the Piper Super Cub. If the maximum gross weight of the airplane is 7780 N, the

viva [34]

Answer:

V=19.08 m/s

Explanation:

Airplane gross weight w=7780 N

Airplane wing area S=16.6 m²

Air density p=1.2250 kg/m³

Maximum lift coefficient CL=2.1

To find

Stalling Speed

Solution

The equation to find stalling speed is given below

$W=(1/2)S_{area}(V_{Stalling-speed} )^{2} (P_{Air-density} )(C_{Lmax} )\\ so\\V_{Stalling-speed}=\sqrt{\frac{2W}{S_{area}*(P_{Air-density} )(C_{Lmax} )} }\\V_{Stalling-speed}=\sqrt{\frac{2*7780}{16.6*2.1*1.225} }\\ V_{Stalling-speed}=19.08 m/s$

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3 years ago