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8_murik_8 [283]
3 years ago
6

The ratio of output power to input power, in percent, is called?

Physics
2 answers:
mixer [17]3 years ago
8 0
EFFICIENCY  THATS THE ANSWER 
:)

Harrizon [31]3 years ago
4 0
That's efficiency. There's no law that it must be stated in percent.
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A man pushes a box of 40kg up incline of 15°, if the man applies a horizontal force of 200N and the box moves up the plane a dis
Tatiana [17]

20 m is the correct answer

5 0
4 years ago
An object initially at rest experiences an acceleration of 9.8 m/s2 how much time will it take it to achieve a velocity of 58 m/
Ber [7]

Answer:

The time required by object to achieve velocity 58 m/s is 5.918 second.

Given:

acceleration = 9.8 \frac{m}{s^{2} }

Initial velocity = 0 m/s

final velocity = 58 m/s

To find:

Time required by object = ?

Formula used:

According to first equation of motion is given by,

v = u + at

Where, v = final velocity

u = initial velocity = 0 (Given The particle is at rest initially)

a = acceleration

t = time

Solution:

According to first equation of motion is given by,

v = u + at

Where, v = final velocity

u = initial velocity = 0 (Given The particle is at rest initially)

a = acceleration

t = time

58 = 0 + 9.8 (t)

t = \frac{58}{9.8}

t = 5.918 s

The time required by object to achieve velocity 58 m/s is 5.918 second.



8 0
4 years ago
A 290-kg flatcar 25 m long is moving with a speed of 7.0 m/s along horizontal frictionless rails. A 80-kg worker starts walking
UkoKoshka [18]

Answer:

Explanation:

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Displacement of flatcar during this period

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Ilya [14]

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d a

Explanation:

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