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Naddik [55]
3 years ago
15

PLEASE HELP BRAINLIEST + POINTS'

Physics
1 answer:
Semenov [28]3 years ago
8 0

For this case we have that by definition, physical power refers to the amount of work done for a unit of time.

So:

P = \frac {W} {t}

Where:

W: It's the work

t: It's time

The power units are in \frac {Joules} {s} = Watts

So, according to the problem data we have:

P = 100W\\t = 120s

Clearing the work of the formula:

W = P * t\\W = 100 * 120 = 1200

Thus, the work is 1200 joules.

Answer:

Option C

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By turning to the starboard, or right, side, the vehicles are able to avoid collision. Because waterways are not marked in a manner like roads are, it is necessary to place such conventions of turning in situations where vehicles approach one another head on. If a convention was not in place, the risk of collision would be many times greater. For example, the motorboat operator may turn left, while the PWC operator turns right, resulting in a collision.
7 0
4 years ago
A ball is dropped from rest from the top of a high building. Ignore air resistance and take g = 9,8 m/s² calculate speed of the
Alex

The speed of the ball after one second is obtained as 9.8 m/s.

<h3>What is the speed after 1 second?</h3>

We know that  since the ball dropped from a height, its initial velocity is zero.

Thus we have;

u = 0 m/s

v = ???

g =  9,8 m/s²

t =  1sec

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v = u + at

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3 0
2 years ago
Calculate the average speed of a cyclist that travels 200 m in 40 s
Andrews [41]
Just divide the two numbers
8 0
3 years ago
A 4.0-m-long, 500 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building
Andre45 [30]

Answer:

T=12544 N*m

Explanation:

Given

L=4.0m

ms=500kg

mw=70kg

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Ts = Fs*d

Ts = ms*g*L

Ts = 500kg*9.8m/s^2*2m

Ts = 9800 N*m

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Tw = Fw*d

Tw = 70kg*9.8m/s^2*4m

Tw = 2744 N*m

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Answer:

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