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3 years ago

Which of the following describes how the moons of Jupiter are similar to Earth?

1 answer:

5 0

"Jupiter's moons orbit Jupiter much like the Earth orbits the Sun" describes how the moons of Jupiter are similar to Earth.

<u>Explanation:</u>

In the solar system, Jupiter, the one considered as the largest planet, whose earth's mass seems to be more than 300 times, it is also the most massive. Its diameter plays a major role in the percentage of moons encircling Jupiter since it has a wide area of gravitational strength to support several moons around it.

The orbital periods which range from seven hours to roughly three Earth years in Jupiter's moons. A few of the orbits are almost circular, whereas the moons farthest from Jupiter are more uneven.

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A beam of sunlight falling on a prism refracts and forms seven color bands. This illustrates that

ExtremeBDS [4]

That isn"t the right answer the correct answer is B.

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3 years ago

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An electric pump rated 1.5 KW lifts 200kg of water through a vertical height of 6m in 10 secs: way is the efficiency of the pump

ruslelena [56]

Answer:

80%

Explanation:

Efficiency = Power output / Power input × 100 %

To calculate efficiency we need to find power output of electric pump.

We can use,

Work done = Energy change

Work done per second = Energy change per second

Work done per second = Power

Therefore, Power = Energy change per second

= Change in potential energy of water per second

=mgh / t

= 200× 10×6 / 10

= 1200 W = 1.2 kW

Now use the first equation to find efficiency,

Efficiency = $\frac{1.2}{1.5}$ × 100%

= 80 %

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3 years ago

Determine the energy, in electron volts, of an emitted photon when an electron transition from n=3 to n=2 occurs

tensa zangetsu [6.8K]

Give me some answer choices and i will be happy to help

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3 years ago

A cabbie is trying to stop when he notices a fare is whistling them over. The

liberstina [14]

K.E=18750J
Mass=m=2100kg
Velocity=v

$\boxed{\sf K.E=\dfrac{1}{2}mv^2}$

$\\ \sf\longmapsto 18750=\dfrac{1}{2}2100v^2$

$\\ \sf\longmapsto 18750=1050v^2$

$\\ \sf\longmapsto v^2=\dfrac{18750}{1050}$

$\\ \sf\longmapsto v^2=17.85m^2$

$\\ \sf\longmapsto v=\sqrt{17.85}$

$\\ \sf\longmapsto v=4.1m/s$

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3 years ago

Which of these statements is true about endothermic reactions, but not about exothermic reactions?

sashaice [31]

I think the correct answer from the choices listed above is the second option. For endothermic reactions, the reactants have less energy than the products. Which would mean that energy should be added to the reaction for it to proceed. Hope this answers the question.

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2 years ago

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