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natali 33 [55]
3 years ago
8

Which examples are simple machines?

Physics
1 answer:
frozen [14]3 years ago
4 0
A hammer and a pulley
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why do a circulatory system is important in meeting the needs of all cells throughout an animals body
valentinak56 [21]
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Given the nuclear equation:
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When sound travels through air, the particles _____. a. vibrate along the direction the wave travels b. vibrate but not in any f
Mandarinka [93]
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8 0
3 years ago
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
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4 0
3 years ago
Does anybody know how to answer any of these questions? Any of them without a check mark.
aivan3 [116]

Explanation:

sorry I can't help u right now

3 0
3 years ago
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