Another planet has the same spherical radius as Earth, but has 3
times Earth's density.
(a) What is the mass of this other planet?
(b) what is its gravitational acceleration
The average density of planet earth is 5.52 g/cm3. Knowing that
Earth has a mass of 5.97*10^27g, determine the earth radius in
miles. ( 1 mile = 1609 meters).
Planet X has a mass of 6 times the mass of Earth, and its radius
is 8 times the radius of Earth. A rocket takes off from Planet X's
surface, with a velocity that is 1/3 vesc, where vesc is the escape
velocity of the planet. How high from the center of Planet X does
the rocket reach in meters?
A planet has the same density as Earth but has a surface
gravitational acceleration of nine times that of
the Earth (a person would instantly black out if placed on the
surface). What is the escape velocity from the planet? If
the planet was in an orbit of 1 AU from a 1 M⊙ star, what is
the maximum distance that a moon could orbit the planet?
Planet Lex is four times as massive as the Earth and has a
radius four times larger than the Earth's radius. Note: You
do not have to express your answers in scientific
notation.
Mass of the Earth = 5.97 x 1024 kg
Radius of the Earth = 6.37 x 106 m
a.
What is the value of the acceleration due to
gravity (in m/s2) on the surface of this
planet? Round off your answer up to two decimal digits.
b....
A) The mass of Jupiter is 317.8000 times that of earth, and its
radius is 10.960 times that of earth. Calculate the acceleration of
gravity at the surface of Jupiter. Express your answer in g's (i.e.
as a ratio to our acceleration of gravity)
B) Then calculate the average density of Jupiter (in
kg/m3) given the earth's density is 5.52×103
kg/m3
The mass of Saturn is approximately 100 times that of the Earth,
and the semimajor axis of Saturn’s orbit is approximately 10
AU.
(a) To this approximation, how does the gravitational force that
the Sun exerts on Saturn compare to the gravitational force that
the Sun exerts on the Earth?
(b) Which planet will experience greater acceleration? By what
factor?
1) An asteroid, whose mass is 6.9 × 10-4 times the
mass of Earth, revolves in a circular orbit around the Sun at a
distance that is 2.9 times the Earth's distance from the Sun.
(a) Calculate the period of revolution of the
asteroid in years. (b) What is the ratio of the
kinetic energy of the asteroid to the kinetic energy of Earth?
2) What must the separation be between a 3.4 kg particle and a
7.4 kg particle...
An asteroid, whose mass is 4.90×10-4 times the mass
of Earth, revolves in a circular orbit around the Sun at a distance
that is 6 times the Earth's distance from the Sun. Calculate the
period of revolution of the asteroid.
Tries 0/10
What is the ratio of the kinetic energy of the asteroid to the
kinetic energy of Earth?