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ahrayia [7]
2 years ago
14

How is power defined? Question 8 options: the quantity of work accomplished the direction of the work the total distance an obje

ct is moved the rate at which work is accomplished.
Physics
1 answer:
kifflom [539]2 years ago
7 0

Power is defined by the rate of work done by the object. Statement D represents the correct definition of Power.

<h3>What is Power?</h3>

Power can be defined as the transfer of energy from one place to another place. The rate at which this energy is transferred is called power.

In other words, the rate at which the work is done by an object is called its power. The mathematical representation of power is given as,

P = \dfrac {\Delta W}{\Delta t}

Here, P is the power, \Delta W is the change in energy or work done and  \Delta tchange in time.

The Power can be written in SI units as Watt or J/s.

Hence we can conclude that the power is the rate at which work is accomplished. Statement D is the correct representation of Power.

To know more about power, follow the link given below.

brainly.com/question/1618040.

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Scientist A believes she has discovered a new procedure that is better than a procedure currently in use by physicians. She test
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B

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How can we magnitise and demagnitise a magnet at the same time
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To develop a molecular clock, you need to find which of the following?

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An object with mass 3.5 kg is attached to a spring with spring stiffness constant k = 270 N/m and is executing simple harmonic m
Elanso [62]

Answer:

Part a)

A = 0.066 m

Part b)

maximum speed = 0.58 m/s

Explanation:

As we know that angular frequency of spring block system is given as

\omega = \sqrt{\frac{k}{m}}

here we know

m = 3.5 kg

k = 270 N/m

now we have

\omega = \sqrt{\frac{270}{3.5}}

\omega = 8.78 rad/s

Part a)

Speed of SHM at distance x = 0.020 m from its equilibrium position is given as

v = \omega \sqrt{A^2 - x^2}

0.55 = 8.78 \sqrt{A^2 - 0.020^2}

A = 0.066 m

Part b)

Maximum speed of SHM at its mean position is given as

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4 0
3 years ago
Given the wave function: Y(x,t) = 5sin27(0.2x - 3t); (x = meters, t = sec.): What are the amplitude, frequency, wavelength, angu
MariettaO [177]

Answer:

Explanation:

Y = 5 Sin27( .2x-3t)

= 5 Sin(5.4x - 81 t )

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frequency = ω / 2π

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λ = 2π / 5.4

= 1.163 m

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15 m / s.

The wave is travelling in + ve x - direction.

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3 years ago
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