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ElenaW [278]
3 years ago
10

Foods that allow microorganisms to grow are called parasites. true or false

Physics
1 answer:
Bas_tet [7]3 years ago
8 0
<span>False. Foods that are improperly stored become what is known as a growth medium for microorganisms. These foods can be dangerous to humans and animals, and while they may cause an internal parasite to be able to grow, such as a tape worm, they are not in and of themselves parasites. Parasites are an organism that feeds off of, or is parasitic, and sustains life from another living organism. Such as a flea feeding off the blood of a dog or cat.</span>
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A 30 g bullet moving a horizontal velocity of 500 m/s comes to a stop 12 cm within a solid wall. (a) what is the change in the b
Sidana [21]
M = 30 g = 0.03 kg, the mass of the bullet
v = 500 m/s, the velocity of the bullet

By definition, the KE (kinetic energy) of the bullet is
KE = (1/2)*m*v²
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Because the bullet comes to rest, the change in mechanical energy is 3750 J.

The work done by the wall to stop the bullet in 12 cm is
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If energy losses in the form of heat or sound waves are ignored, then
W = KE.
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0.06F = 3750
F = 62500 N = 62.5 kN

Answer:
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(b) 62.5 kN

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