Question: A planet is moving at constant speed in a circular orbit around a star. In one complete orbit, what is the net amount of work

A planet is moving at constant speed in a circular orbit around a star. In one complete orbit, what is the net amount of work done on the planet by the star’s gravitational force: positive, negative, or zero? What if the planet’s orbit is an ellipse, so that the speed is not constant? Explain your answers.

Step by Step Solution

★★★★★

3.33 Rating (171 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

For a circular orbit the work done is zero We can see this in either of two ways ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related University Physics Questions!

A swimming duck paddles the water with its feet once every 1.6 s, producing surface waves with this period. The duck is moving at constant speed in a pond where the speed of surface waves is 0.32...

A freight train consists of an engine and several identical cars on level ground. Determine whether each of these statements is correct or incorrect and explain why. (a) If the train is moving at...

Suppose that a typical automobile engine operates at an efficiency of 25%. One gallon of gasoline releases approximately 150 MJ of heat when it is burned. (A megajoule, MJ, is a million joules.) a....

A planet is in a circular orbit around a star. The speed of the planet is constant. The following data are given: Mass of planet = 8 . 0 1 0 2 4 k g Mass of star = 3 . 2 1 0 3 0 k g Distance from the...

A. Determine the angular velocity of the planet. Give magnitude and direction. B. Determine the linear acceleration and the angular acceleration of the planet. Show all work and explain your...

Question 10 of 20 -15E View Policies Next question Current Attempt in Progress To answer this question, first click here to view the associated video. Two cars are identical except for the tread...

1. An object moves at constant speed in a circular path. Which of the following statements are true? Select two answers. (A) The velocity is changing. (B) The velocity is constant. (C) The magnitude...

A planet of mass m = 4.15 x 1024 kg is orbiting in a circular path a star of mass M = 5.05 x 1029 kg. The radius of the orbit is R = 2.95 x 10? km. What is the orbital period (in Earth days) of the...

Pls show step by step workings for each question. Thank you! Everything is included in order to complete the questions A2 1. 2. A 65.0 kg astronaut is walking on the surface of the Moon, which has a...

Particle Filter Project Project Description The goal of this project is to give you practice implementing a particle filter used to localize a man-made satellite in a solar system. After completing...

Rocco owns a piece of land as investment property. He acquired the land in 1988 for $18,000. On June 1, 2011, he sells the land for $80,000. As part of the sale, the buyer agrees to pay all of the...

Using the solubility data of a solid in a specified liquid, explain how you would determine the mole fraction of the solid in the liquid at the interface at a specified temperature.

Why do lenders often refuse to finance 100 percent of the cost of a purchase, requiring borrowers to make a down payment that covers a portion (typically from 10 to 25 percent) of the purchase price?...

Eighty-five percent of all job openings are advertised in the classified section of the newspaper.

A pencil that is 9.0 cm long is held perpendicular to the surface of a plane mirror with the tip of the pencil lead 12.0 cm from the mirror surface and the end of the eraser 21.0 cm from the mirror...

The thin glass shell shown in Fig. E34.12 has a spherical shape with a radius of curvature of 12.0 cm, and both of its surfaces can act as mirrors. A seed 3.30 mm high is placed 15.0 cm from the...

A person swimming 0.80 m below the surface of the water in a swimming pool looks at the diving board that is directly overhead and sees the image of the board that is formed by refraction at the...

L Section 2: Answer ALL questions (This section evaluates CLO2: Cognitive 6) AJV is a year-old experience service business that is in a bad shape. Complaints are looming, customers are not coming...

q30. Which of the following is an example of someone who would be part of a person's secondary membership group? a. a schoolmate b. a neighbour C. parents of a child's friend d. fellow member of a...

(1 point) A random sample of 10 observations was drawn from a large normally distributed population. The data is below. 20 25 24 20 22 22 26 21 18 25 Test to determine if we can infer at the 4%...