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krek1111 [17]
2 years ago
11

William Gilbert used a terella in an attempt to explain _____.

Physics
1 answer:
Alex787 [66]2 years ago
6 0

Answer:

why compasses point towards the north and south poles of the earth.

Explanation:

hope it helps!!

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PLEASE HELP WILL MARK AS BRAINLIEST!!!
marta [7]
The answer is a because tjhey do move at a molecular movemn
5 0
3 years ago
The length of a 100 mm bar of metal increases by 0.3 mm when subjected to a temperature rise of 100°C. The coefficient of linear
Juli2301 [7.4K]

Answer:

α = 3×10^-5 K^-1

Explanation:

let ΔL be the change in length of the bar of metal, ΔT be the change in temperature, L be the original length of the metal bar and let α be the coefficient of linear expansion.

then, the coefficient of linear expansion is given by:

α = ΔL/(ΔT×L)

   = (0.3×10^-3)/(100)(100×10^-3)

   = 3×10^-5 K^-1

Therefore, the coefficient of linear expansion is 3×10^-5 K^-1

5 0
3 years ago
I need help calculating Velocity,
velikii [3]
Average velocity = (800+1600)/(4+10)
= 171.42m/s
5 0
3 years ago
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What happens to the frequency of a wave of you increase the speed of the wave ?
exis [7]

Nothing happens.  The frequency is determined at the source,
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3 0
3 years ago
John pushes a box with a constant force as shown in the graph below.
andrew11 [14]
From the graph, it can be seen that the constant force that John exerted in order to move the object is 14N. Work is calculated by multiplying the force with the distance to which the object moves in parallel with the direction of the force. 
                                      Work = Force x displacement
                                      Work = (14 N) x (8 m)
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The closest value is 110J. Thus, the answer to this item is the second choice. 
4 0
3 years ago
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