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Lilit [14]
3 years ago
8

PHYSICAL SCIENCE

Physics
2 answers:
omeli [17]3 years ago
7 0

Answer:

Option D

Explanation:

Taking 2020 unit test for edu right now.

Nadya [2.5K]3 years ago
7 0

Answer:

D

Explanation:

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What were some benefits to the american television from analog broadcast to digital broadcast?
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Answer:

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Explanation:

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A .5 kg toy train car moving forward at 3 m/s collides with and sticks to a .8 kg toy car that is traveling at 2 m/s what is the
Viktor [21]
Here we have perfectly inelastic collision. Perfectly inelastic collision is type of collision during which two objects collide, stay connected and momentum is conserved. Formula used for conservation of momentum is:
m_{1} * v_{1} + m_{2} * v_{2} = m_{1} * v'_{1}+ m_{2} * v'_{2}

In case of perfectly inelastic collision v'1 and v'2 are same.

We are given information:
m₁=0.5kg
m₂=0.8kg
v₁=3m/s
v₂=2m/s
v'₁=v'₂=x

0.5*3 + 0.8*2 = 0.5*x + 0.8*x
1.5 + 1.6 = 1.3x
3.1 = 1.3x
x = 2.4 m/s
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If you wanted to soundproof your bedroom, the best material to line the walls would be
Vsevolod [243]

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a soft foam material because soft materials absorb sound better

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Should people eat animals?
Lubov Fominskaja [6]

Answer:

I hope it's helpful for you ☺️

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