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Makovka662 [10]
3 years ago
15

What happens when a proton is brought near another proton?

Physics
1 answer:
muminat3 years ago
5 0
They will repel each other because they both have positive charges.
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AYE I NEED HELP!<br> Which two things balance and keep a main sequence star in equilibrium?
gladu [14]

Answer:

While self-gravity pulls the star inward and tries to make it collapse, thermal pressure (heat created by fusion) pushes outward. These two forces cancel each other out in a main sequence star, thus making it stable.

Explanation:

7 0
2 years ago
Decide whether each statement describes mass or weight.
vova2212 [387]

<u>Mass</u>

  • Mass is measured in kilograms.
  • Mass does not change when gravity changes.
  • Mass is the amount of matter in something.

<u>Weight</u>

  • Before I answer, we have to know weight formula. Weight = mass × acceleration due to gravity.
  • Therefore, weight is measured in Newtons.
  • Weight changes when gravity changes. This is because weight is dependent on acceleration due to gravity.
  • Weight is a gravitational force.

Hope you could understand.

If you have any query, feel free to ask.

8 0
2 years ago
Which is a solvent in a cup of juice drink?
RoseWind [281]

Answer:

D. water because the ice cubes the powdered juice and the sugar can be dissolve in water so the solvent is water

3 0
2 years ago
A centrifuge in a biology laboratory rotates at an angular speed of 3,400 rev/min. When switched off, it rotates 48.0 times befo
IgorLugansk [536]

Answer:

- 210 rad/s²

Explanation:

n = frequency of rotation = 3400/60 = 170/3 per sec.

angular velocity  ω ( 0 ) at time 0  = 2π n = 2π x 170/3

angular velocity at time t = ω(t) = 0

now, ω²( t) = w²(o) + 2α Φ ( α = angular acceleration and Φ = angular displacement) = 2π x 48 rad.

0 = ( 2π x 170/3 )² + 2α x 48 x 2π

α = - (2π x 170 x 170 )/ (3 x 3 x 2 x 48 ) = 210 rad / s²

7 0
3 years ago
Find the power of a force F~ = (8 N)ˆı + (−4 N) ˆ if the velocity ~v = (−7 m/s)ˆı + (1 m/s) ˆ. Answer in units of W
Vikki [24]

Answer:

P=-60W

Explanation:

From the question we are told that

Force of power F=8Ni+-4Nj

Velocity of power V=-7m/si+1m/sj

Generally the equation for power is mathematically represented as

Power=Force *Velocity

P=F *V

Generally the dot product of F and V is mathematically given as

P= \begin{vmatrix}8 & -4\end{vmatrix} .\begin{vmatrix}-7 & 1\end{vmatrix}  =-56-4

P=-60W

6 0
2 years ago
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