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2 years ago

12

PLEASE HELP!! Recreation that uses the large muscles of the body is sometimes referred to as _____.

1 answer:

Nadusha1986 [10]2 years ago

4 0

I think that the answer is D!

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PLZ HELP ME Which are not correct statements?

AURORKA [14]

<span>A. Boyle's law only works when the pressure is constant.
</span><span>D. Charles's law relates volume and pressure.

Hope this helps!</span>

8 0

2 years ago

The two main currents that affect the united states on the eat coast and west coast

Virty [35]

<span>The California current on the west coast which runs from north to south and the Gulf Stream on the East coast which runs from south to north.</span>

3 0

2 years ago

Read 2 more answers

Nicolaus Copernicus was a Polish astronomer who is best known for the theory that the sun is near the center of the universe and

abruzzese [7]

Answer:B) It was not understood by scientific world.

Explanation:

4 0

1 year ago

A sailcraft is stalled on a windless day. A fan is attached to the craft and blows air into the sail which bounces backward upon

mylen [45]

Answer:

Impulse = change in momentum w bounce

There are 2 impulses acting. Recoil of the fan going the negative direction and the impulse of the air bouncing off the sail. The greater impulse will bounce so the direction will be to the right moving the craft.

7 0

1 year ago

An electric motor with a 1200 hp output drives a machine with an efficiency of 60%. What is the energy output of the machine per

kirill [66]

Answer:

536,904 J/s

Explanation:

The energy output from motor is the input energy in the machine.

We know that efficiency is percentage energy ouput to energy input, and expressed as

$n=\frac {E_o}{E_i}$

Where n and E represent efficiency and energy respectively, subscripts o and i represent output and input respectively. Since for the machine we have the input energy then the output will be the product of efficiency and input energy

Energy output=0.6*1200 hp=720 hp

Converting hp to J/s we multiply by 745.7

Energy is 720*745.7=536,904 J/s

4 0

2 years ago