Question

The gravitational acceleration at the surface of planet X is
12.4 m/s2, and the radius of the planet is 64,500 km. The altitude
above the surface of planet X, at which the weight of a body is
equal to that on the surface of the earth, in km, is closest
to

Answer #1

The gravitational acceleration on Earth is g=9.8 m/s2. Consider
a planet outside the solar system that has a mass 4 times larger
than that of Earth and a radius that is also 4 times larger than
that of Earth. Estimate the gravitational acceleration (in m/s2) on
that planet.

On the Earth surface,
the gravitatioal acceleration g = 9.8 m/s2 . How many km
above the Earth's surface will the gravitational acceration be 3.7
m/s2 ? The Earth's radius is 6400 km.

1. Planet X belongs to the planetary system of a distant star.
The radius of Planet X was determined through direct observation by
the exploration ship to be Rx = 7.22X103 km. An
exploration team sent to the surface measured the gravitational
acceleration to be gx = 10.6 m/s2.
(a) Use the information given about Planet X to find its mass,
Mx. (Explain every step)
(b) The exploration ship orbits Planet X at an altitude of
1.70X10^3 km. What is...

Planet Zeta-7 has a surface gravitational acceleration of 1.84
m/s² and a surface escape velocity of 2.75 km/s. Planet Alpha-9 has
a mass that is 2.3 times that of Zeta-7 and a radius that is 3.1
times that of Zeta-7. What is escape velocity from the surface of
Alpha-9?

Your task is the compare the surface gravitational acceleration
of four planets to that of Earth.
Earth has mass ME and radius
RE
Planet A has mass MA =
3MEand radius RA =
2RE
Planet B has mass MB =
ME/3 and radius RB =
RE/2
Planet C has mass MC =
ME/6 and radius RC =
RE/3
Planet D has mass MD =
2ME and radius RD =
2RE
Which of the planets has the greatest surface gravitational
acceleration?

15) The Earth's surface gravity famously has a value of about
g=9.8 m/s2. Use the Law of Equilibrium to figure out the
gravitational acceleration in low orbit, at an altitude of about
1700 km. The Earth's mass is about 6×1024 kg and its radius is
about 6.4×106 meters. Answer:
16) Imagine a planet whose surface gravity is only a seventh. If
its radius is 9.14×105 m, what is the planet's mass? Answer:

Planet Z is 7000 km in diameter. The free-fall acceleration on
Planet Z is 7.0 m/s2.
What is the mass of Planet Z?
What is the free-fall acceleration 1.0×104 km above Planet Z's
north pole?

A newly discovered planet has a mass equal to Earth's mass, but
its radius is twice the radius of Earth. The acceleration due to
gravity on the surface of this planet must be
9.80 m/s2
19.6 m/s2
4.90 m/s2
13.9 m/s2
2.45 m/s2

Tamsen and Vera imagine visiting another planet, planet X, whose
gravitational acceleration, gX, is different
from that of Earth's. They envision a pendulum, whose period on
Earth is 2.243 s, that is set in motion on planet X, and the period
is measured to be 1.400 s. What is the ratio of
gX/gEarth? Neglect any
effects caused by air resistance.
A) gx/ge=
If the average density of planet X is equal to Earth's average
density, ρE, what is the ratio...

(A) Calculate the acceleration of gravity,
gC, on Ceres
Apply the kinematics displacement equation to the falling
rock.
(1)
Δx = 1/2at2 +
v0t
Substitute Δx = -10.0 m, v0 = 0,
a = -gC, and t = 8.06 s, and
solve for the gravitational acceleration on Ceres,
gC.
-10.0 m = -1/2gC(8.06 s)2 →
gC = 0.308 m/s2
(B) Find the mass of Ceres.
Equate the weight of the rock on Ceres to the gravitational
force acting on the...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 5 minutes ago

asked 7 minutes ago

asked 10 minutes ago

asked 16 minutes ago

asked 50 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago