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andrezito [222]
3 years ago
14

The work done on a box moved 3 meters by a force of 6 newtons is  newton-meters.

Physics
1 answer:
HACTEHA [7]3 years ago
4 0
Work = force * distance

W = F * d
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Which of the following are homogeneous solutions?
lana [24]

Answer:

salt water, air and vinegar are homogeneous solutions.

Explanation:

A solution which consists of particles of same proportion is known as a homogeneous solution. Whereas a solution which consists of particles of different proportion is known as a heterogeneous solution.

Salt and water are homogeneous solutions as salt completely disperses in water and forms a clear solution as the particles of salt and water are in proportion.

Air is composed of different gases like nitrogen, oxygen etc are all mixed in fixed ratio. Therefore, air is a homogeneous mixture.

Sand and water are heterogeneous solution as the ration of mixing is different and more over sand particles can be separated from water. Thus, it is not a homogeneous mixture.

Vinegar is also a homogeneous solution as it is composed of acetic acid and water which are mixed in fixed proportion.

Cement is a heterogeneous mixture as it is composed of a number of different substances mixed in different proportions.

Thus, we can conclude that salt water, air and vinegar are homogeneous solutions.

7 0
3 years ago
Which portion of the electromagnetic spectrum can the human eye detect? *
Bogdan [553]

Answer:

B. Only wavelengths between infrared and ultraviolet

Explanation:

That is the visible spectrum if you look up a diagram of the light spectrum.

6 0
3 years ago
Suzie skydiver, who weighs 500 n, reaches terminal velocity of 90 km/h. the air resistance on suzie is then
masha68 [24]
<span>Weight of the skydiver m = 500 N
 Terminal velocity V = 90 km/h
 Here the weight of the person acts as the force, so based on the Newton's third law the applied is the force what we but in the opposite direction making the resistance. So the air resistance exerted on Suzie will be her weight that is 500N</span>
7 0
3 years ago
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You lift a large bag of flour from the floor to a 2.5m high counter, doing 400J of work in 2 seconds. How much force did you app
oksian1 [2.3K]
<h2>The man have to apply force of 160 N</h2>

Explanation:

The work done to lift the bag of weight mg through height 2.5 m is 400 J

The work done can be found by relation  W = mg x h

Thus mg = \frac{W}{h} = \frac{400}{2.5} =  160 N

Therefore the man have to apply the force of 160 N

7 0
3 years ago
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About how many times greater is the density of a neutron star compared to a white dwarf?
irina1246 [14]

Answer:

Explanation:

over a million times

7 0
2 years ago
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