1 kg
3.1 Planet P, which is the same size as Earth, but
has twice the mass.
3.2 Planet Q, which has the same mass as Earth
but its radius is half as large.
4 Calculate the distance between the Earth and
the Moon. Use the following approximate
information: mass of Earth = 6 x 1024 kg;
mass of Moon = 7,4 x 1022 kg; gravitational
attraction between Earth and Moon
1,9 x 1020 N
Answers: 3
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For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.
Answers: 1
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What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.
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Physics, 22.06.2019 11:30
Write down two additional questions about earth's magnetic field that will make your presentation more informative.
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What was the first instrument to ever record an earthquake?
Answers: 1
1 kg
3.1 Planet P, which is the same size as Earth, but
has twice the mass.
3.2 Planet Q,...
has twice the mass.
3.2 Planet Q,...
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