Question

(a) For a pulsar that rotates 30 times per second, at what radius in the pulsar’s...

(a) For a pulsar that rotates 30 times per second, at what radius in the pulsar’s equatorial plane would a co-rotating satellite (rotating about the pulsar 30 times per second) have to be positioned to be moving at the speed of light? (b) Could the pulsar be a rotating white dwarf, with a radius comparable to that of the Earth?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
A binary pulsar is a system of two neutron stars of equal mass (each about 1.4...
A binary pulsar is a system of two neutron stars of equal mass (each about 1.4 times the mass of the sun and a radius of 10km). A particular binary pulsar has two neutron stars orbiting around their center of mass, and separated by a (center to center) distance of d= 7.0*10^8m. Assume the orbit is circular. a) Calculate the orbital speed of the stars in meters/second. b) Calculate the magnitude of the centripetal acceleration of one of the stars...
A satellite circles the earth in an orbit whose radius is 3.14 times the earth's radius....
A satellite circles the earth in an orbit whose radius is 3.14 times the earth's radius. The earth's mass is 5.98 x 1024 kg, and its radius is 6.38 x 106 m. What is the period of the satellite? Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 44.6 km/s and 59.9 km/s. The slower planet's orbital period is 8.88 years. (a)...
A uniform cylindrical turntable of radius 1.90 m and mass 30 kg rotates counterclockwise in a...
A uniform cylindrical turntable of radius 1.90 m and mass 30 kg rotates counterclockwise in a horizontal plane with an initial angular speed of 4π rad/s. The fixed turntable bearing is frictionless. A lump of clay of mass 2.25 kg and negligible size is dropped onto the turntable from a small distance above it and immediately sticks to the turntable at a point 1.80 m to the east of the axis. a.) Find the resulting angular speed of the clay...
→A cart with a mass fo 1.5 kg needs to complete a 1.5 meter radius loop...
→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...
7. A potter's wheel of radius 7.9 cm rotates with a period of .44 s. What...
7. A potter's wheel of radius 7.9 cm rotates with a period of .44 s. What are a) the linear speed b) the centripetal acceleration c) the angular velocity d) the angular acceleration of a small clump of clay half way to the rim of the wheel? 8. A student sits at rost on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 6.3 kg m'. A second student tosses a 2.3...
What fraction of light speed does each of the following speeds represent? If any calculation is...
What fraction of light speed does each of the following speeds represent? If any calculation is required, use our usual Newtonian methods and ignore any relativistic effects. Please be sure to comment on whether the Newtonian results are a good approximation to the correct speed. a. A billiard ball moving at 1 m/s. b. A major league fastball crossing the plate at 90 mph. c. A satellite orbiting Earth in low Earth orbit (say 100 km). Earth radius is 6.4...
Consider a neutron star with a mass equal to 0.9 times the mass of the Sun,...
Consider a neutron star with a mass equal to 0.9 times the mass of the Sun, a radius of 15 km, and a rotation period of 1.3 s. What is the speed of a point on the equator of this neutron star? What is gg at the surface of this neutron star? A stationary 1.0 kg mass has a weight of 9.8 N on Earth. What would be its weight on the neutron star? How many revolutions per second are...
7. A 500 kg car goes around turn in the road that has a radius of...
7. A 500 kg car goes around turn in the road that has a radius of curvature of 5 m. The car is traveling at a constant speed of 10 m/s. (i) What is the centripetal force required to keep the car from sliding out as it goes around the turn? (ii) What must be the coefficient of friction between the tires of the car and the road in order for the car to not sliding as it goes around...
Show all calculations and formulas used. The closest star to earth is 4.253 light years away....
Show all calculations and formulas used. The closest star to earth is 4.253 light years away. How far is that in miles? The fastest space probe ever designed has a speed of about 58,000 km/h. How long would it take it to cross the length of the milky way galaxy? If the parallax angle of a star is 0.000075% then how far away is that star? What is the relative brightness of the Sun as seen from Saturn as compared...
See problem 52 in Chapter 13 of the 3rd Edition of Knight for some background information...
See problem 52 in Chapter 13 of the 3rd Edition of Knight for some background information about neutron stars. Consider a neutron star with a mass equal to 0.9 times the mass of the Sun, a radius of 15 km, and a rotation period of 1.3 s. What is the speed of a point on the equator of this neutron star? What is gg at the surface of this neutron star? A stationary 1.0 kg mass has a weight of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT