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erik [133]
3 years ago
9

Which of the following is NOT proof of a chemical change

Physics
2 answers:
Blababa [14]3 years ago
4 0

Answer:

E

Explanation:

all are proof Eeeeeeeeeee

Zinaida [17]3 years ago
4 0

Answer:

E. ALL ARE PROOF

Explanation:

these are all examples of chemical changes

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How many electrons pass a given point in the circuit in 3 min? The fundamental charge is 1.602 × 10−19 C. amps: 0.415 , volts: 1
morpeh [17]

The no of electron passing through the circuit is current by time. The no of electron passing are  46.63 x 10¹⁹ electrons.

<h3>What is charge?</h3>

The charge is the physical quantity which attracts or repels another object when comes into its field.

The time 3 min has 3 x 60 =180 seconds.

Total Charge Q = current I x time t

Q = 0.415 x 180

Q =74.7 coulombs

The no of electrons is the ratio of total charge divided by the fundamental charge.

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n= 46.63 x 10¹⁹ electrons

Thus, electrons pass a given point in the circuit in 3 min are 46.63 x 10¹⁹ .

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1 year ago
Sunlight travels 150,000,000 km from the sun to the earth because of?
padilas [110]
The Speed of Light.
Photons emitted from the surface of the sun to travel across the vacuum of space to reach out eyes
8 0
3 years ago
Once again we have a skier on an inclined plane. The skier has mass M and starts from rest. Her speed at the bottom of the slope
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Answer:

v = 31.3 m / s

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The law of the conservation of stable energy that if there are no frictional forces mechanical energy is conserved throughout the point.

Let's look for mechanical energy at two points, the highest where the body is at rest and the lowest where at the bottom of the plane

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Let's calculate

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4 0
3 years ago
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5 Muscular and strength

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