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Doss [256]
2 years ago
6

Work is always done when

Physics
1 answer:
dusya [7]2 years ago
5 0
Its option 3 an object has potential energy
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Compressing the air by squeezing the bottle was accompanied by a(n) ________ in the temperature of air inside the bottle
Georgia [21]
Increase in temprature
3 0
3 years ago
A charged cloud system produces an electric field in the air near earth's surface. a particle of charge -2.0 × 10-9 c is acted o
defon

Part a)

Magnitude of electric field is given by force per unit charge

E = \frac{F}{q}

E = \frac{4.3 * 10^{-6}}{2 * 10^{-9}}

E = 2150 N/C

Part b)

Electrostatic force on the proton is given as

F = qE

F = 1.6 * 10^{-19} * 2150

F = 3.44 * 10^{-16} N

PART C)

Gravitational force is given by

F_g = mg

F_g = 1.6 * 10^{-27}*9.8

F_g = 1.57 * 10^{-26} N

PART d)

Ratio of electric force to weight

\frac{F_e}{F_g} = \frac{3.44 * 10^{-16}}{1.57*10^{-26}}

\frac{F_e}{F_g} = 2.2 * 10^{10}

7 0
4 years ago
IF THERE ARE ONLY 118 ELEMENTS, HOW DO YOU ACCOUNT FOR THE MANY MILLIONS OF THINGS THAT WE HAVE IN OUR UNIVERSE?
bogdanovich [222]

Answer:

theres only 118 elements that are discovered. now that they're the only ones out there

Explanation:

3 0
3 years ago
There is friction between the block and the
Norma-Jean [14]

Answer:

5 no

Explanation:

actually the 4kg lying on table has no influence

it slides towards 4kg weight hung

as it has excess 2kg force

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4 0
3 years ago
A boy weighs 400N. what is his mass?
Basile [38]

≈40.8kg


this is to take up space


m

=

W

g


=

400

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9.8

m/s

2


≈

40.8

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m

=

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g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

4 0
3 years ago
Read 2 more answers
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