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Anestetic [448]

3 years ago

15

What is the equation for calculating a machines effiency

1 answer:

enyata [817]3 years ago

3 0

Answer:

The work efficiency formula is efficiency = output / input, and you can multiply the result by 100 to get work efficiency as a percentage. This is used across different methods of measuring energy and work, whether it's energy production or machine efficiency.

Explanation:

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A sled and its rider are moving at a speed of 4.0 m/s along a horizontal stretch of snow. The snow exerts a kinetic frictional f

ehidna [41]

Answer:

The acceleration of the sled is "0.49 m/s²". A further explanation is given below.

Explanation:

The given values are,

Speed,

V = 4.0 m/s

Coefficient of kinetic friction,

μ = 0.05

As we know,

⇒ $F \mu=\mu mg$

and,

⇒ $a = \mu g$

On substituting the given values, we get

⇒ $=0.0 5\times 9.8$

⇒ $=0.49 \ m/s^2$

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A hydrogen atom is in its ground state when its orbital electron:

Harlamova29_29 [7]

It is in its ground state when its orbital electron is at its lowest energy amount.

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3 years ago

As shown in the diagram below, a rope attached to a 500.-kilogram crate is used to exert a force of 45 newtons at an angle of 65

kaheart [24]

Answer:

19.01 N

Explanation:

F = Force being applied to the crate = 45 N

$\theta$ = Angle at which the force is being applied = $65^{\circ}$

Horizontal component of force is given by

$F_x=F\cos\theta\\\Rightarrow F_x=45\times \cos65^{\circ}\\\Rightarrow F_x=19.01\ \text{N}$

The horizontal component of the force acting on the crate is 19.01 N.

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3 years ago

Hey guys please help ✋✋

Lemur [1.5K]

Answer:

by using mearsung scale

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A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. But 3 sec

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Answer:

67676

Explanation:

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4 years ago