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4 years ago

Amotor supplied by 240V requires 12A to lift a 2000 lb at a rate of 25 ft/min, me power input to the motor is-

Physics

1 answer:

tensa zangetsu [6.8K]4 years ago

4 0

Answer:

Power input, P = 2880 watts

Explanation:

It is given that,

Voltage of the motor, V = 240 V

Current required, I = 12 A

Weight lifted, W = 2000 lb

It is lifting at a speed of 25 ft/min. We need to find the power input to the motor. The product of current and voltage is called power input of the motor.

$P=I\times V$

$P=12\ A\times 240\ V$

P = 2880 watts

So, the power input of the motor is 2880 watts. Hence, this is the required solution.

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Answer:

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Explanation:

To know the the correct answer to the question given above, let us define the terms covalent and ionic.

Covalent is the term used to characterise a compound which is formed by sharing of electrons between the atoms involved. Thus, the compound formed is called covalent compound.

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3 years ago

7. A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The oncoming water stream has

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Answer:

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Explanation:

Given that,

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$F=\dfrac{\Delta P}{\Delta t}$

$F=\dfrac{m(v-u)}{\Delta t}$

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So, the magnitude of the average force exerted on the water by the blade is 960 N. Hence, this is the required solution.

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3 years ago

A wave travels at a constant speed. How does the wavelength change if the frequency is reduced by a factor of 4?

Svetlanka [38]

Answer:

The product of (wavelength) x (frequency) is always the same number ... the wave's speed.

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Explanation:

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Answer:

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