4 years ago

How are electromagnets different from regular magnets?

Physics

1 answer:

Digiron [165]4 years ago

5 0

Answer: all of the above

Explanation:

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marysya [2.9K]

Answer:

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1) J = P = 100 g

Mass does not change with location.

2) 10 m/s

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A piston of small cross-sectional area a is used in a hydraulic press to exert a small force f on the enclosed liquid. A connect

seropon [69]

Answer:

force on larger piston = $\frac{fA}{a}$

Explanation:

we label the pistons as piston A and piston B

small piston A:

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force = ?

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we know that pressure = force ÷ area

pressure of piston A = $\frac{f}{a}$

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obeying Pascal's law, the system pressures must be equal. Therefore

$\frac{f}{a} = \frac{(force on piston B)}{A}$

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4 years ago

a moving ball rolls into a stationary ball. the total momentum of both balls after the collision will be

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The momentum of the rolling ball will have less momentum than before the collision and the stationary ball will have more momentum after the collusion.

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Does an Atom of different elements have different number of protons

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Answer:

Explanation:

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