For a planet twice as far away from the sun as the Earth, how much lower would its solar constant be?
For a planet twice as far away from the sun as the Earth, how much lower...
If Earth were half as far as it actually is from the Sun, the force of gravity attracting Earth to the Sun would be (a) four times as strong. (b) twice as strong. (c) the same. (d) half as strong. (e) one-quarter as strong.
On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 118 and a standard deviation of 18. Suppose one individual is randomly chosen. Let X 10 of an individual. a. A school offers special services for all children in the bottom 4% for IQ scores. What is the highest IQ score a child can have and still receive special services? Round your answer to 2 decimal places. b. Find the...
A planet with twice the mass of the Earth orbits a star that is 2/3 the mass of the Sun. The orbital radius of the planet around the star is 4.5X10^12m. What is the orbital period of the planet?
Sunlight at the radius of Earth’s orbit away from the sun contains 1370W atts/m2 (this is called the solar constant and is a very important constant for climate science). i.e. Every second, 1370J of sunlight fly through a square of size 1m2. The Earth has an albedo of 0.3. This means that 30% of the energy gets re- flected back into space. For symplicity, we can assume that the a square meter of the Earth facing the sun absorbs 1000J...
6. A planet orbits the sun with a period of 12 years. How far is the planet from the sun?(G 6.67x10-1Nm2/kg2 and Mgun 199x100xg) meters
How close would an Earth-mass planet have to be to the star so
that the planet’s radial velocity would exceed the natural 1 ms-1
radial velocity jitter by a factor of 2?
How long would the year be if the planet were this close to the
Sun?
3) (10 pts) The spectral lines of a 1 solar mass star have a random noise shift of ~1 ms due to the effects turbulence in the star. How close would an Earth-mass...
PHYSICS II homework help!
A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, 10 years have elapsed on earth, and 8.7 elapsed on board the ship. How far away (in meters) is the planet, according to observers on earth?
On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 112 and a standard deviation of 14. Suppose one individual is randomly chosen. Let X = IQ of an individual. a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected person's IQ is over 115. Round your answer to 4 decimal places. c. A school offers special services for all children in the...
planet X travels in a circular motion orbit around the Sun. The radius of Planet X is twice that of Earth. The year on Planet X is 540 Earth years. The mass of Planet X is half that of Earth. The mass of the sun is 1.99*10^30 kg. The Earth's orbital distance from the Sun is 1.50*10^11 m.
Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. You then stand, elevating your eyes by a height H = 1.35 m, and stop the watch when the top of the sun again disappears. If the elapsed time is t = 10.1 s, what is the radius r of the planet to two significant figures?...