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Misha Larkins [42]
3 years ago
10

PLEASE HELP! **

Physics
1 answer:
Eduardwww [97]3 years ago
8 0
It moves to 56 km per hours
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The battery for a certain cell phone is rated at 3.70 V. According to the manufacturer it can produce math]3.15 \times 10^{4} J[
AysviL [449]

Answer:

The average current that this cell phone draws when turned on is 0.451 A.

Explanation:

Given;

voltage of the phone, V = 3.7 V

electrical energy of the phone battery, E = 3.15 x 10⁴ J

duration of battery energy, t = 5.25 h

The power the cell phone draws when turned on, is the rate of energy consumption, and this is calculated as follows;

P = \frac{E}{t}

where;

P is power in watts

E is energy in Joules

t is time in seconds

P = \frac{3.15*10^4}{5.25*3600s} = 1.667 \ W

The average current that this cell phone draws when turned on:

P = IV

I = \frac{P}{V} =\frac{1.667}{3.7} = 0.451 \ A

Therefore, the average current that this cell phone draws when turned on is 0.451 A.

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3 years ago
The moon and other satellites rotate around the earth. Identify the force that keeps these satellites in orbit. A) gravity B) fr
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The force is gravity
4 0
3 years ago
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When are magnets attracted and when are they repelled.
vova2212 [387]
Magnets are attracted when each of the different sides, most commonly known as "North" and "South", are facing each other. They repel when North and North, or South and South are facing each other.
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3 years ago
The acceleration due to gravity on the Moon's surface is
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Answer:

50 lb

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Given,

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It depends where you are.

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-- If you weigh 120  pounds on the Earth,
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6 0
3 years ago
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