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AlekseyPX
3 years ago
12

What is magnetisim? What things are magnets?

Physics
1 answer:
fredd [130]3 years ago
5 0
A physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.
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Answer:

Gamma rays occupy the short-wavelength end of the spectrum; they can have wavelengths smaller than the nucleus of an atom. Visible light wavesare one-thousandths the width of human hair--about a million times longer than gamma rays. Radio waves, at the long-wavelength end of the spectrum, can be many meters long.

6 0
3 years ago
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The two main currents that affect the united states on the eat coast and west coast
Virty [35]
<span>The California current on the west coast which runs from north to south and the Gulf Stream on the East coast which runs from south to north.</span>
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3 years ago
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A 10-kg rock falls from a height of 8-m above the ground. What is the kinetic energy of the rock just before it hits the ground?
pishuonlain [190]

Answer: 800

Explanation:

1/2 x m x v^2 = m x g x h

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3 years ago
What's the momentum (in kg-m/s) of a cannonball with a mass of 21 moving with a velocity of 25 m/s?
lbvjy [14]
P=mv
P=21*25=525 kg*m/s
8 0
4 years ago
A skateboarder has an acceleration of −1.9 m/s2. If her initial speed is 6 m/s, how long does it take her to stop?
SSSSS [86.1K]
You said that she's losing 1.9 m/s of her speed every second.

So it'll take

             (6 m/s) / (1.9 m/s²)  =  3.158 seconds  (rounded)

to lose all of her initial speed, and stop.
6 0
3 years ago
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