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pav-90 [236]
2 years ago
12

A man uses oars to paddle a boat across a lake, as shown below. The subsequent motion of the boat is best explained by Newton's

law of action-reaction. Why? *
A) As each oar pushes the water, the water pushes back, making the boat move forward.
B) The mass of the oars is more than the mass of the man, which makes the boat move forward.
C) The gravitational pull on the oars makes the boat move foward.
D) The water is in motion and will remain in motion until the oars make it stop, pushing the boat forward.
Chemistry
2 answers:
Alex787 [66]2 years ago
7 0

Answer:

A

Explanation:

Over [174]2 years ago
4 0

Answer:

B) The mass of the oars is more than the mass of the man, which makes the boat move forward.

Explanation:

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What did J. J. Thomson observe when he applied electric voltage to a cathode ray tube in his famous experiment?
Nataly_w [17]

The glass opposite to the negative electrode started to glow. Hence, option B is correct.

<h3>What is a cathode ray tube?</h3>

A cathode-ray tube (CRT) is a specialized vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface.

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Hence, option B is correct.

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6 0
1 year ago
a rock is found to have a small amount of copper would you call the rock an ore of copper explain in 5-6 sentences
alexgriva [62]

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3 years ago
Write the balanced chemical equation for the reaction of potassium metal (k) with water to yield potassium hydroxide.
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Reaction: 2K₍s₎ + 2H₂O₍l₎ → 2KOH₍aq₎ + H₂₍g₎.
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H₂O - water.
KOH - potassium-hydroxide.
H₂ - hydrogen.
s - solid phase.
l - liquid.
aq - disolves in water.
g - gas.
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