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Svetllana [295]
3 years ago
8

Which of these would be caused by a chemical change?

Physics
1 answer:
olganol [36]3 years ago
7 0

Answer:

which of what?

Explanation:

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Worth 50 point!!!
stira [4]

Answer:

fact one

Explanation:

fact two is going slower and a longer distance than fact one so fact one will get there first.

hope this helps

4 0
3 years ago
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 29.0 km/h and the co
bazaltina [42]

Answer:

Explanation:

Let the radius of track required be r.

Centripetal force will be provided by frictional force which will be equal to

m v²/ r

Frictional force = mg x μ

So

m v² /r = mg μ

r = v² / μ g =

  v = 29 km /h = 8.05 m /s

r =( 8.05 x 8.05 ) /( .32 x 9.8 ) = 20.66 m

5 0
2 years ago
Which of the following statements is not one of Newton's laws of motion?
Alex17521 [72]

Answer:

The answer to your question: d.

Explanation:

a. The rate of change of momentum of an object is equal to the net force applied to the object.  

This is the second a law of motion, so this answer is incorrect.

b. In the absence of a net force acting on it, an object moves with constant velocity.

This is the first Newton law of motion, so this option is not correct.

c. For any force, there always is an equal and opposite reaction force.

This is the third law of motion, so this is not the right option.

d. What goes up must come down.

Newton said this sentence, but is not part of the law of motion.

5 0
3 years ago
Which is the Colour of cleanliness
kirill [66]
White is the cleanliness color
3 0
2 years ago
Clarence is taking his dog for a walk around town. After wandering around for an hour, his mother calls him, telling him dinner
Anvisha [2.4K]

Answer:

he can subtract the distance and then divide by the time it takes him

Explanation:

8 0
3 years ago
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