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Kipish [7]
3 years ago
7

21. Which statement best describes the relationship between atoms and nuclear forces? (2 points) Strong nuclear forces hold the

nucleus of an atom together. Weak nuclear forces hold neutrons and electrons together. O Weak nuclear forces hold the nucleus of an atom together. Strong nuclear forces are responsible for breaking down atoms. w O weak nuclear forces hold small atoms together. Strong nuclear forces hold large atoms together. O Strong nuclear forces hold the nucleus of an atom together. Weak nuclear forces are involved when certain types of atoms break down.​
Physics
1 answer:
jeka57 [31]3 years ago
6 0

Answer:

what you gonna do w3th th3 bekfosjfjejsjs

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a. Particles in warmer objects make particles in colder objects move faster.

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A dense metal sphere is dropped from a 10-meter tower, and at the exact same time an identical metal sphere is thrown horizontal
givi [52]

Answer:

A. Both spheres land at the same time.

Explanation:

The horizontal motion doesn't affect the vertical motion.  Since the two spheres have the same initial vertical velocity and same initial height, they land at the same time.

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Read 2 more answers
A bullet is shot horizontally from shoulder height (1.5 m) with an initial speed 200 m/s. (a) How much time elapses before the b
daser333 [38]

Answer:

<h2>a) Time elapsed before the bullet hits the ground is 0.553 seconds.</h2><h2>b) The bullet travels horizontally 110.6 m</h2>

Explanation:

a)  Consider the vertical motion of bullet

We have equation of motion s = ut + 0.5 at²

        Initial velocity, u = 0 m/s

        Acceleration, a = 9.81 m/s²  

        Displacement, s = 1.5 m      

     Substituting

                      s = ut + 0.5 at²

                      1.5 = 0 x t + 0.5 x 9.81 xt²

                      t = 0.553 s

      Time elapsed before the bullet hits the ground is 0.553 seconds.

b) Consider the horizontal motion of bullet

We have equation of motion s = ut + 0.5 at²

        Initial velocity, u = 200 m/s

        Acceleration, a = 0 m/s²  

        Time, t = 0.553 s      

     Substituting

                      s = ut + 0.5 at²

                      s = 200 x 0.553 + 0.5 x 0 x 0.553²

                      s = 110.6 m

      The bullet travels horizontally 110.6 m

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What happens to a wave when it moves from one medium to another?
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One side of the wave changes speed before the other side, causing the wave to move
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