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adoni [48]
2 years ago
12

Question 2 of 5 Which two statements are true for both compounds and mixtures? A. They can be separated into two or more element

s. B. Their particles all have the same chemical formula. C. Their particles are held together by chemical bonds. D. They are made up of more than one type of atom.​
Physics
1 answer:
Alekssandra [29.7K]2 years ago
7 0

Answer:

D and A

I'm not sure about A lol

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In which of the following materials is the velocity of light greatest?
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3 years ago
Convert the speed of light, 3.0 x 108 m/s, to km/s.
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3 years ago
a 1500 kg car traveling at 15 m/s to the south collides with a 4500 kg truck that is intially at rest at a spotlight. The car an
harkovskaia [24]

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3.75 m/s south

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Momentum before collision = momentum after collision

m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂

Since the car and truck stick together, v₁ = v₂.

m₁ u₁ + m₂ u₂ = (m₁ + m₂) v

Given m₁ = 1500 kg, u₁ = -15 m/s, m₂ = 4500 kg, and u₂ = 0 m/s:

(1500 kg) (-15 m/s) + (4500 kg) (0 m/s) = (1500 kg + 4500 kg) v

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The final velocity is 3.75 m/s to the south.

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3 years ago
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