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3 years ago

Swings are usually made out of materials that do not conduct heat easily, so that children will not burn themselves as they play

Physics

1 answer:

Irina18 [472]3 years ago

8 0

the correct answer is D: all of these

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A car with a mass of 600 kg is traveling at a velocity of 10 m/s. How much kinetic energy does it have?

Viefleur [7K]

Answer:

KE = 30,000 J

Explanation:

KE = $\frac{1}{2}$ mv²

KE = $\frac{1}{2}$ (600)(10)²

KE = $\frac{1}{2}$ (600)(100)

KE = $\frac{1}{2}$ (60000)

KE = 30,000 J

5 0

3 years ago

What items are inside the nucleus?

Natalija [7]

Answer:

protons and neutrons

Explanation:

8 0

2 years ago

How much work is done in holding a 10 newton sack of potatoes while waiting in line at the grocery store for 3 minutes.

hodyreva [135]

Answer:

Zero

Explanation:

W = F × s

F = 10 N,

t = 3min = 180sec

s = 0( no change in postion)

W = 10 ×0

W = 0

4 0

2 years ago

WILL MARK BRAINLIEST JUST PLEASE HELP

mixer [17]

Answer:

40N in either direction is the answer

6 0

2 years ago

Read 2 more answers

What does the law of conservation of matter state

r-ruslan [8.4K]

Answer:

Matter can be changed, but not created or destroyed.

Explanation:

Matter can change for through physical and chemical changes, though this happens, matter is conserved. The same amount of matter exists before and after the change.

3 0

2 years ago