Physics Gravitation Level: Misc Level
a person weighs 588 N on the earth what is her mass on a planet where the acceleration due to gravity is 12 m/s^2? (assume g on earth as 9.8 m/s^2)
Physics Gravitation Level: Misc Level
The plane Jupiter requires 4330 days to orbit in an almost circular trajectory around the sun, which has a mass 1,00 x 1030 kg.
a. Calculate the radius of the orbit of the Jupiter as it circles the sun. Answer needs to be in meters. My answer was 3.58x1012
b. Calculate the orbital speed of Jupiter as it circles the sun.Answer needs to be in km/s My answer was 6.09 km/s
Physics Gravitation Level: Misc Level
When a falling meteor is at a distance above Earth,s surface of 4 times the Earth,s radius, what is its acceleration due to the Earth's garvity? (g=9.8 m/s2).Rounding the answer to 3 significant figures. My answer was .393 m/s2
Physics Gravitation Level: Misc Level
A pendulum of length 2 meter is taken to a moon. If this pendulum makes 10 oscillations in 32.0 seconds, what is the value of gravitational acceleration on this moon?
Physics Gravitation Level: Misc Level
5-A satellite of mass 50 kg is orbiting the earth at height of 1000 km (as measured above the surface of the earth).The mass of the earth is 5.98x10^24 kg and the earth,s radius is 6.38x10 ^6 m.
A- Find the speed of the satellite in its orbit.
B-If this orbit were decreased, by some external mechanism, by 100 km,would the speed of the satellite increase or decrease?Why?
Physics Gravitation Level: Misc Level
2-The earth,s moon has a radius of 1.76x10^6 m and a mass of 7.35 x10^22 kg.
A-Calculate the acceleration due to gravity (g)on the moon.
B-How long would it take for a mass of 1 kg to fall a distance of 2 m to the surface of the moon?
G=6.673X10^-11 Nm2/kg2
Physics Gravitation Level: Misc Level
Gravitation between Earth and Moon
The mass of the Earth is given as 5.98. 10 24 kg, our Moon, s mass as 7.35. 10 22 kg, the The average distance as 3.84. 108 m, and G=6.673. 10-11 Nm2 /kg2 is the gravitational constant.
a) Compute the force with which Earth attracts our Moon and compute the force with which our Moon attracts Earth. Compare the results and comment on them.
b) Compute the accelerations of Earth and Moon toward each other. Compare the results and reason why we consider that our Moon orbits Earth.
c) If gravitation was the only physics happening to our Moon, it and Earth would collide after about 6 days. What prevents our Moon from crashing into Earth?
Physics Gravitation Level: Misc Level
Stars originate as larges bodies of slowly rotating gas. Because of gravity, these clumps of gas slowly decrease in size. The angular velocity of a star increases as it shrinks because of?
Physics Gravitation Level: Misc Level
Halley, s comet moves about the sun in an elliptical orbit with its closest approach to the sun being 0.59 A.U. and its furthest distance being 35 A.U. (1 Astronomical Unit is the Earth -sun distance). If the comet, s speed at closest approach is 54 km/s, what is its speed when it is farthest from the sun?
Physics Gravitation Level: Misc Level
We call the acceleration due to gravity on the Earths surface" g" The planet Deneb prime has a mass 260 time that of the Earth and radius of 2 times that of the Earth. Compared to the Earth, what is the acceleration due to gravity on Deneb prime?Express your answer in g s. So if you compute a value for the gravitational acceleration on Deneb prime of, for example 3.2 g, you should simply enter "3.2".
a) 36.75
b) 48.87
c) 65.00
d) 86.45
e) 114.98
Physics Gravitation Level: Misc Level
A planet is a circular orbit around the sun. Use Newton s law of gravity and his second law of motion to calculate the period of the planet ( in day ). Data: Mass of sun =1.989 e+ 30 kg: Mass of planet =6.0 e + 24 kg:Orbit radius =1.496 e+11 m.
Physics Gravitation Level: Misc Level
M 1 is a spherical mass ( 35.0 kg ) at the origin. M 2 is also a spherical mass
( 14.8 kg ) and is located on the x- axis at x =68.2 m. At what value of x would a third mass with a 19. 0 kg mass experience no net gravitational force due to M 1 and M 2 ?
Physics Gravitation Level: Misc Level
The acceleration due to gravity on the moon is about 1.61 m /second squared. What will be the period of a 200 cm long pendulum on the moon?
Physics Gravitation Level: Misc Level
It is possible for a large star to gravitationally collapse, crushing itself into a tiny neutron star perhaps 40 km in diameter.Suppose such a thing could happen to our Sun, which is 1.39 x 10 ^9 meters in diameter and spinning at a rate of one revolution every 27 days. What would the spin rate be for the neutron star?You may assume that the moment of inertia of the Sun is 1 /2 m r ^2.
Physics Gravitation Level: Misc Level
Asteriod
The asteroid Europa orbits the Sun like the other planets. Its period is about 1980 days. What is its mean distance from the Sun?
