2 years ago

Magnetic poles that are alike a. attract each other. b. repel each other. c. do not interact. d. have the same shape.

2 answers:

8 0

the answer is b repel each other because to of the same poles go out the same way making it impossible for them to connect

Vera_Pavlovna [14]2 years ago

4 0

They repel each other.

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Even when shut down after a period of normal use, a large commercial nuclear reactor transfers thermal energy at the rate of 150

Sever21 [200]

Answer: $2.89\approx 2.9^{\circ}C/s$

Explanation:

Given

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mass of core $\left ( m\right )=1.60\times 10^5 kg$

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Now

P= $mc\frac{\mathrm{d}T}{\mathrm{d} t}$

$150\times 10^6=1.60\times 10^5\times 0.3349\times \frac{\mathrm{d}T}{\mathrm{d} t}$

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3 years ago

The rest mass of a proton is 1.673 × 10-27 kg. The relativistic mass of a proton when its velocity is 0.8c is approximately

sergiy2304 [10]

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2 years ago

Two pebbles, Pebble A and Pebble B, are thrown horizontally with the same force. Pebble A's mass is 3 times the

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Answer:

Pebble A has 1/3 the acceleration as pebble B.

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F = m×a

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Same starting force, F

m_a = mass of a

m_b = mass of b

a_a = acceleration of a

a_b = acceleration of b

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3 × m_b × a_a = m_b × a_b

3 × a_a = a_b

a_a = a_b / 3

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2 years ago