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Sonbull [250]
3 years ago
9

Which two factors does the power of a machine depend on? work and distance force and distance work and time time and distance

Physics
1 answer:
zloy xaker [14]3 years ago
5 0
The definition of mechanical power is

                       Power = (work done) / (time to do the work).

From that definition, it looks pretty much like the power of a machine
depends on work and time.
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Which of the following is NOT a geological event caused by the movement of tectonic plates?
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3 years ago
A boat sails along the shore. To an observer, the boat appears to move at a speed of 22 m/s, and a man on the boat walking forwa
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7 0
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A singly charged ion of 7Li (an isotope of lithium which lost only one electron) has a mass of 1.16 ×10^-26 kg. It is accelerate
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Explanation:

It is given that,

Mass of lithium, m=1.16\times 10^{-26}\ kg

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Uniform magnetic field, B = 0.724 T

Applying the conservation of energy as :

\dfrac{1}{2}mv^2=qV

v=\sqrt{\dfrac{2qV}{m}}

q is the charge on an electron

v=\sqrt{\dfrac{2\times 1.6\times 10^{-19}\ C\times 224\ V}{1.16\times 10^{-26}\ kg}}

v = 78608.58 m/s

v=7.86\times 10^4\ m/s

To find the radius of the ion's path in the magnetic field. The centripetal force is balanced by the magnetic force as :

qvB=\dfrac{mv^2}{r}

r=\dfrac{mv}{qB}

r=\dfrac{1.16\times 10^{-26}\ kg\times 7.86\times 10^4\ m/s}{1.6\times 10^{-19}\ C\times 0.724\ T}

r = 0.0078 meters

So, the radius of the path of the ion is 0.0078 meters. Hence, this is the required solution.

4 0
3 years ago
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Uranus is much much larger than Earth, so the distance from the planet's center is much much greater
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