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zvonat [6]
2 years ago
14

Please help me with this! :)

Physics
1 answer:
Bingel [31]2 years ago
8 0
I can answer it in the comments, but can i ask what i’m supposed to do exactly? i remember learning about this stuff but i need the instructions.
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A proton is moving at 425 m/s. (a) How much work must be done on it to stop it? (A proton has a mass of 1.67×10−27 kg.) (b) Assu
Tpy6a [65]

Answer:

a)1.51*10^-22joules b) 1.89*10^-7m

Explanation:

Work done to stop the proton = the kinetic energy of the proton = 1/2 mv^2 = 1/2* 1.67*10^-27* 425*425 = 1.51* 10 ^ -22 joules

b) net force acting to stop the proton = 8.01*10^-16

Work done needed to stop the proton = net force acting opposite the motion * distance

Distance covered = need work done/ net force

Distance = 1.51*10^-22/8.01*10^-16= 1.89*10^-7m

8 0
3 years ago
Which is a disadvantage of using wind as an energy source?
lesantik [10]

Answer:

it produces

Explanation:

a lot of waste

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3 years ago
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A particle in a 799=m-long linear particle accelerator is moving at 0.875C. How long does the particle accelerator appear to the
barxatty [35]

the answer is 386m because m = pi mc=2.23

6 0
2 years ago
Which road would exert the LEAST amount of friction on a car?
bearhunter [10]

Answer:

Icy roads

Explanation:

There is so little friction you slide on it way more than other roads. :)

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If you were to walk at a constant speed 20m/s for 30 seconds, how far would you walk?
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600m

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