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Snowcat [4.5K]
2 years ago
5

Two 100 kg bumper cars are moving toward each other in opposite directions. Car A is moving at 8 m/s and Car Bat -10 m/s when th

ey collide
head-on. If the resulting velocity of Car B after the collision is 8 m/s, what is the velocity of Car A after the collision? (2 points)
а) -8 m/s
b)-10 m/s
c) 0 m/s
d)10 m/s
Physics
1 answer:
tatiyna2 years ago
3 0

Answer:

b) -10 m/s

Explanation:

In perfectly elastic head on collisions of identical masses, the velocities are exchanged with one another.

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Explanation:

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\Delta{K} + \Delta{U} = 0

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v^2 = 2G\dfrac{M}{r}

We can rewrite this as

v^2 = 2\left(G\dfrac{M}{r^2}\right)r

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v^2 = 2gr

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The first trophic level of the food chain has the most energy.

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3 years ago
Gaseous helium is in thermal equilibrium with liquid helium at 6.4 K. The mass of a helium atom is 6.65 × 10−27 kg and Boltzmann
chubhunter [2.5K]

Answer:

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Explanation:

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162.78 m/s is the most probable speed of a helium atom.

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b) Mass on the surface of Lo

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