Question

Does the Earth constitute a system without any external forces acting on it? Is the Earth’s...

Does the Earth constitute a system without any external forces acting on it? Is the Earth’s momentum conserved? Explain your answers.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Earth does not constitute a system without external forces acting on it this is because there are so many gravitational forces acting on earth by sun , moon , meteors and the other planets as well. The most dominant of these is the gravitational force of sun. This is the reason that linear momentum of earth is not conserved. Earth revolves around the sun at almost constant velocity in magnitude but the direction of velocity keeps changing and hence the linear momentum of earth keeps changing

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
part1:Think about the forces acting on an engine and the train it pulls. a.) Draw a...
part1:Think about the forces acting on an engine and the train it pulls. a.) Draw a force diagram for the 5 forces acting on the engine as it accelerates forward along the rails. b.) Draw a force diagram for the 4 forces acting on the train as it is pulled by the accelerating engine. c.) By Newton’s 3 rd Law, the train pulls backward on its engine exactly as hard as the engine pulls forward on the train. Since Newton’s...
1.The momentum of an object is not dependent on which one of the following quantities? a)...
1.The momentum of an object is not dependent on which one of the following quantities? a) acceleration b) inertia c) mass d) velocity 2.Which one of the following statements concerning the momentum of a system when the net force acting on the system has a positive value is true? a) The momentum of the system is increasing. b) The momentum of the system is decreasing. c) The momentum of the system is equal to zero kg  m/s. d) The...
Does an object always move in the same direction as the net external force acting on...
Does an object always move in the same direction as the net external force acting on it? If so, explain why. If not, describe a clear counterexample.
1-Are there any conservative forces that do not do any work on the block during the...
1-Are there any conservative forces that do not do any work on the block during the period of time when pendulum (block and tubing) is swinging upward? Explain 2- Are there external-conservative forces, beside air resistance, that do work on the ball/pendulum system? explain
1. On occasion, the Earth-Moon-Sun system is aligned such that the Earth or Moon casts a...
1. On occasion, the Earth-Moon-Sun system is aligned such that the Earth or Moon casts a shadow partially or directly on the other body. These events are called eclipses. A lunar eclipse happens when the Moon passes through the Earth’s shadow. A solar eclipse occurs when the Moon is in a position where it blocks sunlight from getting to Earth. A. Draw a Sun-Earth-Moon diagram for each kind of eclipse (lunar and solar). Make sure you draw your diagrams large...
1. When a child descends a sliding board in a playground, does the total macroscopic mechanical...
1. When a child descends a sliding board in a playground, does the total macroscopic mechanical energy of the system (Earth, slide, and child) maintain its value, increase, or decrease? a. decrease b. increase c. maintains d. Can be any of the above 2. Imagine that a wood block is sliding along the surface of a desk. Can the frictional forces involved in this interaction change the momentum of the two-body system thought of as the Earth (including the desk)...
The scenario is as follows: A 502 g block (.502 kg) is sitting at rest on...
The scenario is as follows: A 502 g block (.502 kg) is sitting at rest on a scale. The scale reads 502 g. Identify the forces acting on the block: Is the block in equilibrium? How do you know? Identify the forces acting on the scale. Is the scale in equilibrium? How do you know?   First draw a free body diagram for the block. Here you consider the block as your system of interest. Everything else is external.  Then draw a...
Without performing any calculations, determine whether the entropy of the system increases or decreases in the...
Without performing any calculations, determine whether the entropy of the system increases or decreases in the dissolution of table salt: NaCl(s) → NaCl(aq) 1.) Unable to determine 2.) decreases 3.) The entropy does not change. 4.) increase
1. Triple the net force on an object is : mass triples. acceleration triples. velocity triples....
1. Triple the net force on an object is : mass triples. acceleration triples. velocity triples. 2. As you walk along a level floor, the friction force acting on your feet points in what direction? In the direction of your motion Down Up Cannot decide from the given information Opposite to the direction of your motion speed triples. momentum triples. 3. Let m be your mass. When you are standing up, the normal force acting on you from the floor...
If the earth is a perfect sphere, spinning with angular velocity, Ω. You are standing on...
If the earth is a perfect sphere, spinning with angular velocity, Ω. You are standing on the surface of the earth, at the latitude of New York, and you drop a rock. If you draw a line from the rock to the center of the earth, it would intersect the ground at a point X. a) What are the forces on the rock, in your rotating reference frame, at the instant you let go of the rock, but before it...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT