3 years ago

The poles of the Earth's magnetic field line up with the geographic poles of the Earth.

2 answers:

8 0

Answer: False

Explanation: A magnetic compass does not point to the geographic north pole. A magnetic compass points to the earth's magnetic poles, which are not the same as earth's geographic poles. Furthermore, the magnetic pole near earth's geographic north pole is actually the south magnetic pole.

Gemiola [76]3 years ago

8 0

Answer:

true (the other guy is wrong)

Explanation:

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A centrifuge is a device that rotates an object to produce an acceleration many times that of gravity Pilots are trained in such

Leviafan [203]

Answer:

ω = 0.571 rad/s

Explanation:

given data

radius = 30 m

solution

we take here g = 9.8 m/s²

and g is express as

g = r × ω² ....................1

put here value and we get

9.8 = 30 × ω²

solve it we get

ω = 0.571 rad/s

5 0

2 years ago

What does kinetic energy do when it go up a hill?what do potential energy do when it does up a hill?

Artist 52 [7]

Answer:

Kinetic energy decreases as you go up hill

Potential energy increases as you go up hill

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2 years ago

A projectile has an initial horizontal velocity of 15 meters per second and an initial vertical velocity of 25 meters per second

Artyom0805 [142]

Answer:

75 m

Explanation:

The horizontal motion of the projectile is a uniform motion with constant speed, since there are no forces acting along the horizontal direction (if we neglect air resistance), so the horizontal acceleration is zero.

The horizontal component of the velocity of the projectile is

$v_x = 15 m/s$