The weight of 20 kg is
(mass) x (gravity) =
(20 x 9.8) = 196 newtons, downward.
There must be a force of 196 newtons upward on the mass.
Otherwise the mass is accelerating either up or down.
0.118 m is the distance between the two protons.
Mass of proton = 1.6726 × 10⁻²⁷ kg
Weight of proton= 1.6726 × 10⁻²⁷ x 9.81 N
= 1.6408 × 10⁻²⁶ N
Charge of proton = 1.602 × 10⁻²⁹ C
The force between two protons = kq²/r² where, K is a proportionality
constant, q is a charge of proton and
r is the distance between two protons.
= 9 × 10⁹ × (1.602×10⁻¹⁹)²/r²
To calculate distance :
Weight of proton= Force between protons
⇒ 1.6408 × 10⁻²⁶ N = 9 × 10⁹ × (1.602×10⁻¹⁹)²/r²
⇒ r = 0.118m
Therefore, 0.118 m is the distance between the two protons.
Learn more about electrostatic force here:
brainly.com/question/18108470
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Answer:
True
Explanation:
<em>Gas</em><em> </em><em>always</em><em> </em><em>live </em><em>in </em><em>free</em><em> </em><em>state </em><em>but </em><em>some </em><em>gas </em><em>is </em><em>not </em><em>.</em><em> </em><em>We </em><em>can </em><em>said</em><em> </em><em>that</em><em> </em><em>mostly</em><em> </em><em>gas </em><em>volume</em><em> </em><em>can </em><em>be </em><em>changeable </em><em>during</em><em> </em><em>disturbing</em><em> </em><em>by </em><em>environment </em><em>situation</em><em>.</em>
<span>First blank: B) Cutting down trees instead of growing trees
Cutting down trees means less plants that are photosynthesizing and consuming CO2 from the atmosphere.
Second blank: </span><span>D) Using clean energy sources instead of fossil fuels
Clean energy sources have little to no CO2 emissions. On the other hand, fossil fuels, when burned/combusted release large amounts of CO2 into the atmosphere.</span>
sorry, it's B, not a made a mistake in the approximation
