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ch4aika [34]
3 years ago
10

All of the following statements are true except (4 points) a. lunar phases result from the changing lunar mass b. the lunar phas

es change regularly c. lunar phases are unrelated to lunar eclipses d. the sun is involved in lunar phases
Physics
2 answers:
Yakvenalex [24]3 years ago
8 0

Answer:

A. Lunar phrases result from the changing lunar mass.

~batmans wife dun dun dun.....

lara31 [8.8K]3 years ago
7 0
A. lunar phases result from the changing lunar mass. Let me know if this helped.
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20. A car battery with a 12-V emf and an internal resistance of 0.050 Ω is being charged with a current of 60 A. Note that in th
topjm [15]

Answer:

Part a)

V = 15 Volts

Part b)

P = 180 Watt

Part c)

Rate = 720 Watt

Explanation:

Part a)

When battery is in charging then the potential difference of the terminals of cell is given by

\Delta V = EMF + iR

here we know that

EMF = 12 volts

i = 60 A

r = 0.050 ohm

now we have

\Delta V = 12 + (0.050)(60) = 15 Volts

Part b)

Rate of thermal energy dissipated is the energy which is dissipating across the resistor

so here we have

P = i^2 R

P = (60^2)(0.05)

P = 180 Watt

Part c)

Rate at which Energy stored inside the cell is the rate of electrical energy that is converted into the chemical energy

Rate = EMF \times i

Rate = (12)(60)

Rate = 720 Watt

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3 years ago
The rate at which speed changes is called
pochemuha

Answer:

Acceleration

Explanation:

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8 0
3 years ago
Write relationship between hertz and megahertz​
dusya [7]

Explanation:

1 mega Hertz = 1000000 hertz

8 0
3 years ago
What is the mass of an object that creates 33750 J of energy by traveling at 30 m/s
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Answer: Mass of the object is  75 kg.
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A weightlifter raises a 50kg weight to a height of 2m in 2 minutes. What was the power spent by the weightlifter?
belka [17]

Answer:

117.72kW

Explanation:

Given data

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let us find the work done

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Power= work * time

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Power= 117.72 kW

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8 0
3 years ago
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