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PtichkaEL [24]
3 years ago
10

The amount of power required to move an object can be increased without changing the

Physics
1 answer:
VLD [36.1K]3 years ago
3 0

Answer:

Yes it is possible to increase the power with out changing the amount of work.

Explanation:

The power is defined by the amount of power divided by the time. This time is the one needed to do the work. We can understand this issue by analyzing an example with numeric values.

Work = 500 [J]

Time = 5 [s]

Power will be:

Power=\frac{500}{5} \\Power=100 []watt]\\

Now if we change the time to 2 seconds:

Power = 500 [J]/2[s]\\Power = 250 [watt]\\

As we can see, the power was increased without the need to change the work.

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The longest wavelength within the visible spectrum is _______ light.
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5 0
2 years ago
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In a mass spectrometer a particle of mass m and charge q is accelerated through a potential difference V and allowed to enter a
Ghella [55]

Answer:

m = B²qR² / 2 V

Explanation:

If v be the velocity after acceleration under potential difference of V

kinetic energy  = loss of electric potential energy

1/2 m v² = Vq ,

v² = 2 Vq / m ----------------------- ( 1 )

In magnetic field , charged particle comes in circular motion in which magnetic force provides centripetal force

magnetic force = centripetal force

Bqv = mv² / R

v = BqR / m

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from (1) and (2)

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m = B²qR² / 2 V

7 0
3 years ago
Jet fighter planes are launched from aircraft carriers with the aid of their own engines and a catapult. If in the process of be
ANTONII [103]

Answer:

W=315 x 10⁵ J

Explanation:

Given that

F= 2.5 x 10⁵ N

d= 90 m

K.E.=5.4 x 10⁷ J

We know that work done by all force is equal to the change in kinetic energy

Lets take work done by catapult is W

W + F.d= K.E.

W= 5.4 x 10⁷ -  2.5 x 10⁵  x 90 J

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Explain what is the capacity of a battery in your own words​
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2 years ago
A car speeds up from 12.0 m/s to 16.0 m/s in 8.00s what is the acceleration
Lerok [7]

Answer:

0.5m/s²

Explanation:

acceleration =v-u/t

=(16-12)/8

=4/8

acceleration =0.5m/s²

7 0
2 years ago
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