It had better be a vector, otherwise there's be no excuse for calling it a "velocity". It would just be the muzzle speed.
-- "Weight" is the gravitational attraction between TWO objects.
-- Its 'strength' depends on the mass of BOTH masses.
If either mass changes, then the gravitational force between them changes.
-- Your 'weight' on Earth depends on your mass and the Earth's mass.
-- Your 'weight on the moon depends on your mass and the Moon's mass.
From the list of choices, the best one is "The Earth and moon have
different values for the acceleration due to gravity.", although that
doesn't really explain much.
Answer a) is incorrect as sound does not travel in a vacuum.
Neither do.beacuse diffusion occurs due the random movement a substance's particals move from a higher concentration to a lower concentration down the concentration gradient.On the other hand osmosis is the movement of water molecules from a high water potential to a low water potential through a partially permeable membrane.thus no energy is required for them to do so.Active transport is a process that requires energy.
The first evidence that gravity outside our solar system worked the same way as it does inside is that Herschel measured the two stars that make up the Castor system moved around each other
<h3>What is a Solar system ?</h3>
The Sun, eight planets, their moons, comets, asteroids, meteoroids, and dwarf planets make up a solar system, which revolves around the Sun. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune are the eight planets that revolve in a particular order around the Sun.
- Although there are more than 3,200 other stars in our galaxy with planets around them, our solar system is the only one that is formally referred to as a "solar system."
- The closest stellar system to our solar system, Alpha Centauri, is one of the brightest stars in the southern skies and is only 4.3 light-years away.
Learn more about Solar system here:
brainly.com/question/1286910
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