2 years ago

Approximately how much of an atoms mass is located in its nucleus? A.less than 1% B.25% C.75% D.over 99%

1 answer:

8 0

Answer:

D.over 99%

Explanation:

Nucleus contains all of the neutrons and protons, and electrons don't weigh as much relative to the other particles.

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DaniilM [7]

Answer:

K = 1800 kJ

Explanation:

Given that,

The speed of the object, v = 30 m/s

Mass of the object, m = 4000 kg

We need to find the kinetic energy of the object. The formula for the kinetic energy is given by :

$K=\dfrac{1}{2}mv^2\\\\K=\dfrac{1}{2}\times 4000\times 30^2\\\\K=1800000\\\\or\\\\K=1800\ kJ$

So, the required kinetic energy is equal to 1800 kJ.

3 0

2 years ago

ad-work [718]

38 i think it would be im prob wrong

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2 years ago

Lera25 [3.4K]

D= vt +.5at^2
since he started at rest, v (initial velocity) is 0
so d=.5at^2
d = .5 (6m/s^2) (4.1s)^2
then put that into a calculator.

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2 years ago

a_sh-v [17]

Fa sho it's 30j edge said so

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2 years ago

lapo4ka [179]

Bdjsbevevfbfcnbfbffbs s kdkfc

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3 years ago