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tiny-mole [99]
3 years ago
13

Please help me, I will give BRAINLIEST to the best answer

Physics
2 answers:
In-s [12.5K]3 years ago
8 0

Answer:

I believe it is A, B, and D

Explanation:

It asks you which of the following is having work DONE on IT. When you lift up the grocery bag, you have work done on the grocery bag. When a crane moves dirt, the crane is having work done on the dirt. and in D, I thought if it really counts, but I believe it does since you push the crate along the floor I guess. I'm sure about A and B, not that sure about D though. Have a noice day!

sdas [7]3 years ago
3 0

Explanation:

a. A grocery bag as you lift it up

b. A crane moving dirt......

d. A crate as you push it along the floor

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A 20×10⁹charge is moved between two points A andB that are 30mm apart and have an electric potential difference of 600v between
Ulleksa [173]

Answer:

90x20=1800

Explanation:

just multiply 10 & 9 and then mutiply 90x20 or 20x90

4 0
2 years ago
WILL GIVE YOU WHAT EVER YOU WANT JUST HELP ME
Alona [7]

Answer:

Explanation:

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5 0
3 years ago
A particular 12 V car battery can send a total charge of 110 A·h (ampere-hours) through a circuit, from one terminal to the othe
DiKsa [7]
<h2>Answer:</h2>

(a) 3.96 x 10⁵C

(b) 4.752 x 10⁶ J

<h2>Explanation:</h2>

(a) The given charge (Q) is 110 A·h (ampere hour)

Converting this to A·s (ampere second) gives the number of coulombs the charge represents. This is done as follows;

=> Q = 110A·h

=> Q = 110 x 1A x 1h          [1 hour = 3600 seconds]

=> Q = 110 x A x 3600s

=> Q = 396000A·s

=> Q = 3.96 x 10⁵A·s = 3.96 x 10⁵C

Therefore, the number of coulombs of charge is 3.96 x 10⁵C

(b) The energy (E) involved in the process is given by;

E = Q x V           -----------------(i)

Where;

Q = magnitude of the charge = 3.96 x 10⁵C

V = electric potential = 12V

Substitute these values into equation (i) as follows;

E = 3.96 x 10⁵ x 12

E = 47.52 x 10⁵ J

E = 4.752 x 10⁶ J

Therefore, the amount of energy involved is 4.752 x 10⁶ J

8 0
3 years ago
How much does the Earth weigh? Why does the moon appear in the daytime?
ch4aika [34]

Answer:

moon disappear because of the rotation

7 0
3 years ago
What charge accumulates on the plates of a 2.0-μF air-filled capacitor when it is charged until the potential difference across
enot [183]

Answer:

0.0002 C.

Explanation:

Charge: This can be defined as the ratio of current to time flowing in a circuit. The S.I unit of charge is Coulombs (C)

Mathematically, charge can be expressed as

Q = CV ................................. Equation 1

Where Q = amount of charge, C = capacitance of the capacitor, V = potential difference across the plates.

Given: C = 2.0-μF = 2×10⁻⁶ F, V = 100 V.

Substitute into equation 1

Q = 2×10⁻⁶× 100

Q = 2×10⁻⁴ C

Q = 0.0002 C.

The amount of charge accumulated = 0.0002 C

7 0
3 years ago
Read 2 more answers
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