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3 years ago

6

Which of the following statements is true? A. All metals are magnetic. B. All the magnets are made of iron. C. Earth is a giant

magnet.

1 answer:

harina [27]3 years ago

3 0

C. Earth <em>is </em>a giant magnet

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Two ice skaters approach each other at right angles. Skater A has a mass of 32.7 kg and travels in the x direction at 2.3 m/s. S

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Answer:

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Explanation:

Given that,

Mass of skater A, $m_A=32.7\ kg$

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Mass of skater B, $m_B=93.3\ kg$

Initial speed of skater B, $u_B=1.51j\ m/s$ (y axis)

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$m_Au_A+m_Bu_B=(m_A+m_B)V$

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$V=\dfrac{75.21i+140.88j}{126}$

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$|V|=1.25\ m/s$

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