Question

2. A 65 kg man is standing at the Earth's surface.

(a) What is the approximate magnitude of the gravitational force on
the man by the Earth. Give your answer in newtons. Get the mass and
radius of the Earth from the inside back cover of your text.
Remember, enter only the number; don't try to enter the
units.

N

(b) What is the approximate magnitude of the force of gravitation
on the same man by the Sun. You may approximate the distance from
the Sun to the man by the distance from the Sun to the Earth; get
that distance, as well as the mass of the Sun, from the inside back
cover of your book.

N

(c) What is the approximate magnitude of the force of gravitation
on the same man by the Moon. You may approximate the distance from
the Moon to the man by the distance from the Moon to the Earth; get
that distance, as well as the mass of the Moon, from the inside
back cover of your book.

N

Answer #1

During a solar eclipse, the moon, earth, and sun all lie on the
same line, with the moon between the earth and sun. Define your
coordinates so that the earth and moon lie at greater x values than
the sun. For each force, give the correct sign as well as the
magnitude.
Instruction.
Draw the sun, moon, and earth along the x-axis. Then, define
your coordinates so that the earth and moon lie at greater x values
than the sun....

A spaceship of mass m travels from the Earth to the Moon along a
line that passes through the center of the Earth and the center of
the Moon.
(a) At what distance from the center of the Earth is the force
due to the Earth twice the magnitude of the force due to the Moon?
(Astronomical data needed for this problem can be found on the
inside back cover.)
(No Response) m (b) How does your answer to part...

Compare the weight of a 5.40-kg object on Earth's surface to the
gravitational force between a 5.40-kg object that is one Earth
radius from another object of mass equal to 5.98 ×× 1024
kg. Use Newton's universal law of gravitation for the second part
of the question.
2)
Determine the gravitational force an Earth radius away.
(Express your answer to three significant figures.)

If you weigh 690 N on the earth, what would be your weight on
the surface of a neutron star that has the same mass as our sun and
a diameter of 22.0 km ? Take the mass of the sun to be ms =
1.99×1030 kg , the gravitational constant to be G = 6.67×10−11
N⋅m2/kg2 , and the free-fall acceleration at the earth's surface to
be g = 9.8 m/s2 .
Express your weight wstar in newtons.

For the following hypothetical changes in astronomical bodies
answer whether the change would make the specified property L -
Larger, S - Smaller, or N - Not changed. (If the first is L and the
rest S, enter LSSSS).
A) If the mass of the Sun were half as much and the Earth kept
the same distance, the period of the Earth's orbit would be .....
B) If the radius of the Earth were larger (but the mass were the...

A person with mass mp=80 kg is standing at rest on a horizontal,
frictionless surface holding a ball of wet clay with mass mg=10 kg
. In front of the person is a large block with mass M=20 kg at rest
next to a spring with stiffness k=100 N/m . The person throws the
ball horizontally, it sticks to the block, and then ball and block
slide and compress the spring a distance 1=0.75 m away from
equilibrium before the...

Q1)At the surface of Jupiter's moon Io, the acceleration due to
gravity is 1.81 m/s2 . A watermelon has a weight of 47.0 N at the
surface of the earth. In this problem, use 9.81 m/s2 for the
acceleration due to gravity on earth.
a-What is its mass on the earth's surface?
b-What is its mass on the surface of Io?
c-What is its weight on the surface of Io?
----------------------------------------------------------------------
Q2)The upward normal force exerted by the floor is...

1. A 0.020 kg and a 0.060 kg ball are at the two opposite ends
of a compressed spring. When the spring expands, the 0.060 kg ball
is shot at a speed of 3 m/s. Assuming no energy loss, calculate the
shot speed of the other ball.
A.9 m/s
B.6 m/s
C.3 m/s
D.1 m/s
2. Calculate the gravity force between the Earth and the
Sun.
msun = 1.99×1030 kg ; mEarth =
5.97×1024 kg ; Earth-Sun distance : 1.50×1011...

i) Explain the difference between a man-made and a
natural satellite.
ii) State two important advantages of weather
satellites.
iii) Starlink is a satellite constellation being
constructed by SpaceX to provide global satellite Internet access.
The constellation will consist of thousands of small satellites in
low earth orbit. A Starlink launch to an altitude of 550km is
required. The Falcon 9 launcher delivers 9.0 metric tonnes payload
into a LEO orbit. The lift-off mass is 318 tonnes. The U of...

→A cart with a mass fo 1.5 kg needs to complete a 1.5 meter
radius loop the loop. What is the minimum velocity? a. 3.83 b. 12.2
c. 15.62 d. 14.7 e. 9.95
→A 30.0 N force is applied to the edge of a sphere that has a
weight of 45.0 N and a radius of 40.0 cm. The sphere is at rest
before the applied force. What will be the angular velocity of the
sphere as a result of...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 47 seconds ago

asked 2 minutes ago

asked 7 minutes ago

asked 11 minutes ago

asked 32 minutes ago

asked 40 minutes ago

asked 43 minutes ago

asked 44 minutes ago

asked 50 minutes ago

asked 59 minutes ago

asked 1 hour ago

asked 1 hour ago