Question

Two planetary masses of 4.0*10^19 kg and 8.0*10^15kg respectively are 4*10^10 m apart, what is the...

Two planetary masses of 4.0*10^19 kg and 8.0*10^15kg respectively are 4*10^10 m apart, what is the force of gravity between the two masses?

By what factor would the force change if the distance were to reduce by a factor 4?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The force of gravity between two masses m and M, separated by a distance 'r' is given by

Where G = 6.67 X 10-11 Nm​​​​​2/kg​​​2 is universal gravitational constant.

Therefore the force of gravity between the two given planets is

Now, if we reduce the distance by a factor of 4 then

Hence, the force will increase 16 times of the original value.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The seperation distance between two masses is 0.400 m The objects have masses of 270 kg...
The seperation distance between two masses is 0.400 m The objects have masses of 270 kg and a 570 kg. (a) Find the net gravitational force exerted by these objects on a 52.0 kg object placed midway between them.
A cord of mass 0.65 kg is stretched between two supports 8.0 m apart. If the...
A cord of mass 0.65 kg is stretched between two supports 8.0 m apart. If the tension in the cord is 140N, how long will it take a pulse to travel from one support to the other?
1. A cord of mass 0.65 kg is stretched between two supports 8.0 m apart. If...
1. A cord of mass 0.65 kg is stretched between two supports 8.0 m apart. If the tension in the cord is 140 N, how long will it take a pulse to travel from one support to the other? 2. A 50.0 Kg ball hangs from a steel wire 1.00 mm in diameter and 6.00 m long. What would be the speed of a wave in the steel wire? 3. The intensity of an earthquake wave passing through the earth...
Two blocks A and B with masses of 50 and 100 kg, respectively, are connected by...
Two blocks A and B with masses of 50 and 100 kg, respectively, are connected by a rope, the pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the inclined plane is 0.25. If block A moves from C to D a distance of 10m. Assume part of rest. Angle is 35. Determine: a) The change in kinetic energy of block A, b) The change in potential energy in block B, c) Calculate...
Two point particles, A and B, with masses 4 kg and 6 kg, respectively, are connected...
Two point particles, A and B, with masses 4 kg and 6 kg, respectively, are connected by a rigid massless rod with a length of 0.6 m. The entire system is able to freely rotate, but is initially at rest. The following net torque acts on the system: T(net) (t)= (2 Nm/s)t What is the work (in J) done by this torque for during the first 2 s it acts on the particles?
Two equally charged particles, held 4.0 × 10-3 m apart, are released from rest. The initial...
Two equally charged particles, held 4.0 × 10-3 m apart, are released from rest. The initial acceleration of the first particle is observed to be 7.3 m/s2 and that of the second to be 8.4 m/s2. If the mass of the first particle is 8.5 × 10-7 kg, what are (a) the mass of the second particle and (b) the magnitude of the charge of each particle?
Two equally charged particles, held 4.0 × 10-3 m apart, are released from rest. The initial...
Two equally charged particles, held 4.0 × 10-3 m apart, are released from rest. The initial acceleration of the first particle is observed to be 5.5 m/s2 and that of the second to be 9.0 m/s2. If the mass of the first particle is 7.8 × 10-7 kg, what are (a) the mass of the second particle and (b) the magnitude of the charge of each particle?
1.Two students are sitting 1.50 m apart. One student has a mass of 70.0 kg and...
1.Two students are sitting 1.50 m apart. One student has a mass of 70.0 kg and the other has a mass of 52.0 kg. What is the gravitational force between them? 2. What gravitational force does the moon produce on the Earth is their centers are 3.88x108 m apart and the moon has a mass of 7.34x1022 kg?
(a) What is the gravitational potential energy of a two-particle system with masses 5.4 kg and...
(a) What is the gravitational potential energy of a two-particle system with masses 5.4 kg and 3.4 kg, if they are separated by 1.2 m? If you triple the separation between the particles, how much work is done (b) by the gravitational force between the particles and (c) by you?
Newton's Law - Please provide an explanation to the questions below. PART A: Two objects have...
Newton's Law - Please provide an explanation to the questions below. PART A: Two objects have a gravitational attraction of 100 N. If the mass of ONE of the objects was doubled, what would the new force of gravity between the objects be? - Answer is 200 N. PART B:  Two objects have a gravitational attraction of 100 N. If the mass of both of the objects was doubled, what would the new force of gravity between the objects be? -...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT