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slega [8]
3 years ago
7

A decrease in the height of a column in a mercury barometer means that _____. air pressure is increasing wind speed is increasin

g air pressure is decreasing air pressure is being deflected by the coriolis effect
Physics
2 answers:
zloy xaker [14]3 years ago
8 0

Answer:

Correct answer is  air pressure is decreasing

Explanation:

Atmospheric pressure is usually measured with the help of  barometer. A barometer consist of  a glass tube in which there is a column of mercury. This column of mercury changes with the changing weight of the atmosphere. It means height of mercury column depend on air pressure.Height of  height of a column in a mercury barometer is directly proportional to atmospheric pressure.Therefore a decrease in the height of a column in a mercury barometer means that air pressure is decreasing.

Lady_Fox [76]3 years ago
3 0
I think it's "air pressure is decreasing".
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FrozenT [24]

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6 0
2 years ago
PLEASE PLEASE PLEASE A mad scientist places massive amounts of charge on basketball sized aluminum balls. The charge on the ball
bazaltina [42]

Answer:

4.2 x 10⁷N

Explanation:

Given parameters:

Charge on ball:

             q₁  = 3C

              q₂ = 14C

Distance between balls  = 9000m

Unknown:

Force acting on the two balls

Solution:

The force experienced by the two charges is given by coulombs law. It is mathematically expressed as;

                      F  = \frac{k q_{1} q_{2} }{r^{2} }

where k  = 9 x 10⁹Nm²/C²

           q is the charges

             r is the distance

Input the variables and solve;

                 

        F  = \frac{9 x 10^{9} x 3 x 14 }{9000}  = 4.2 x 10⁷N

8 0
3 years ago
When a body is moving with a uniform velocity, the acceleration is ___?
denis23 [38]
<span>According to the formula : 
</span><span>a=<span><span>ΔV / </span><span>ΔT
</span></span></span><span>When a body is moving with a uniform velocity, the acceleration is zero. That's it. You should remember, that velocity is not constant whereas speed is constant.</span>
4 0
3 years ago
A dumbell has a mass of 95 kg. What force must be applied to accelerate it upward at 2.2 m/s2?
Sveta_85 [38]
A :-) F = ma
Given - m = 95 kg
a = 2.2 m/s^2
Solution -
F = ma
F = 95 x 2.2
F = 209

.:. The force is 209 N
5 0
3 years ago
What is the displacement for the couple's hiking trip? Give your answer as an ordered pair, with magnitude first, followed by a
nekit [7.7K]

Answer:

Explanation:

See the attached

7 0
3 years ago
Read 2 more answers
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