Physics, 25.12.2019 05:31 tylorwsimmons
Consider a small, spherical particle of radius r located in space a distance r from the sun, of mass ms. assume the particle has a perfectly absorbing surface and a mass density rho. the value of the solar intensity at the particle's location is s. calculate the value of r for which the particle is in equilibrium between the gravitational force and the force exerted by solar radiation. your answer should be in terms of s, r, rho, and other constants. (use the following as necessary: ms, r, rho, c, s, and g.)
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Physics, 21.06.2019 21:00
Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?
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Physics, 22.06.2019 11:30
If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?
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Physics, 22.06.2019 18:30
Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
Physics, 23.06.2019 01:40
The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?
Answers: 1
Consider a small, spherical particle of radius r located in space a distance r from the sun, of mass...
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