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Natali5045456 [20]
3 years ago
15

Define 1 watt power?​

Physics
1 answer:
Bumek [7]3 years ago
5 0

Answer:

A body is said to have power of 1 watt if it does work at the rate of 1 joule in 1 s. Watt is the SI unit of power. Other units of power include ergs per second, horsepower, metric horsepower or cheval vapeur (CV)), and foot-pounds per minute. The unit Watt is named after the scientist James Watt.

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Which single force acts on a object in a free fall
11Alexandr11 [23.1K]

Answer:

weight!!!! Free fall is the motion of a body where its weight is the only force acting on an object.

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Hello I need help its due today!
telo118 [61]

Answer:This also means that Mercury's surface gravity is 3.7 m/s2, which is the equivalent of 38% of Earth's gravity (0.38 g). This means that if you weighed 100 kg (220 lbs) on Earth, you would weigh 38 kg (84 lbs) on Mercury.

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2 years ago
A 4.75 kg block is sent up a ramp inclined at an angle ????=31.5° from the horizontal. It is given an initial velocity ????0=15.
Colt1911 [192]

Answer:

d = 13.7 m

Explanation:

When block is moving upwards along the inclined plane

then the block is decelerated due to gravity as well as due to friction and speed of the block by which it is projected upwards is given

v_i = 15 m/s

deceleration caused to the block due to net force opposite to the motion is given as

F = - mg sin\theta - \mu mgcos\theta

a = \frac{F}{m}

a = -g(sin\theta + \mu cos\theta)

since block is sliding on the inclined plane

so here we can say that the coefficient of the friction must be kinetic friction here

a = -9.81(sin31.5 + 0.368 cos31.5)

a = - 8.2 m/s^2

now for finding the distance upto which it will stop is given as

v_f^2 - v_i^2 = 2 a d

0 - 15^2 = 2(-8.2) d

d = 13.7 m

8 0
2 years ago
Which two subatomic particles have approximately the same mass
maksim [4K]

Answer:

proton and neutron has the same mass of 1amu

5 0
3 years ago
A graph labeled velocity versus time with horizontal axis time (seconds) and vertical axis velocity (meters per second). A blue
jekas [21]

Answer:

B

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It's because the line keeps going straight meaning it has a constant velocity from beginning to end.

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3 years ago
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