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3 years ago

5

Which of these is a type of matter that rarely interacts with other matter and is created in some nuclear fusion reactions withi

n stars?
A. photon
B. positron
C. neutrino
D. helium-4

1 answer:

marysya [2.9K]3 years ago

7 0

Answer:

the answer is helium you already know that because im in college on my way to the military next week bless me

Explanation:

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How much kinetic energy does an 80 kg man have while running at 3 m/s?

Soloha48 [4]

Hello!

$\large\boxed{KE = 360 J}$

Use the equation KE = 1/2mv² to solve for the kinetic energy of the man.

We are given the mass and velocity, so plug these values into the equation:

KE = 1/2(80)(3²)

KE = 1/2(720)

KE = 360 J

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3 years ago