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3 years ago

If opposite poles repel each other, why does the north end of a compass point to the north pole?

1 answer:

6 0

Ratios are fractions

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Studentka2010 [4]

<span> (26 m/s)(1 rotation/0.62π m) ≈ 13.35 rotations/s that will do pig that'll do</span>

8 0

3 years ago

11111nata11111 [884]

Explanation:

Below is an attachment containing the solution.

4 0

3 years ago

kap26 [50]

Wait, no, its melting

6 0

2 years ago

Lubov Fominskaja [6]

Answer:

Work done to lift the box is 515.03 J

Explanation:

By work energy theorem we know that work done by all forces is equal to change in kinetic energy

So we have

$W_g + W_{ex} = \Delta K$

so we have

$-mgh + W_{ex} = 0$

so we have

$W_{ex} = mgh$

$W_{ex} = 30(9.8)1.75$

$W_{ex} = 515.03 J$

5 0

3 years ago

UkoKoshka [18]

0.8611 g/cm ^2
Density = mass/ volume

4 0

3 years ago