Neutron stars, such as the ones at the center of the crab nebula, have about the same mass as our sun but a much smaller diameter. if you weigh 785 n on earth, what would you weigh when at the surface of a neutron star that has the same mass as out sun and a diameter of 15 km?

Question

25-01-2018
Physics

contestada

Neutron stars, such as the ones at the center of the crab nebula, have about the same mass as our sun but a much smaller diameter. if you weigh 785 n on earth, what would you weigh when at the surface of a neutron star that has the same mass as out sun and a diameter of 15 km?

Respuesta :

Otras preguntas

Mr. Romero is 64, retiring soon, and considering enrollment in his employer-sponsored retiree group health plan that includes drug coverage with nominal copays.

a) What volume of butane (C 4 H 10 ) can be produced at STP, from the reaction of 13.45 g of carbon with 17.65 L of hydrogen gas at STP? b) Which reactant is in

PLEASE HELP What was the significant difference between Elizabeth I and Charles I? - Even though Elizabeth was next in line after Charles, she did not have Engl

I am an early adopter of new technology Overall, I am comfortable using new technology It is easy for me to use a camera on a phone, tablet, or computer I enjo

Within three days of birth, a newborn has developed a yellowish tinge that extends from face to mid-chest, is lethargic, and has to be woken to feed. Which cond

As the leader of a company, you designate people to encrypt all company data. Encrypting data is known as

Create a conditional expression that evaluates to string negative if user_val is less than 0, and non-negative otherwise.

An elderly client with diabetes comes to the clinic in winter reporting numbness of the feet. After removing the client's shoes and socks, the nurse notes that

3. Look back at line 59 of "I Have a Dream." How is physical violence a good example of how protests might degenerate? How does this reflect King's views?

solve the equation: z^ +4z+20+iz(a+1)=0 Where A is constant, has complex conjuget root. if one of roots this quadratic is z=B+2i?

jcherry99 jcherry99 · Answer 1 · 2018-02-05T23:49:58+01:00

Givens
======
F1 = 785 N on earth
F2 = Force on Sun
F3 = Force on Star
r_earth = 6371 km
r_sun = 695 700 km
r_star = 15/2 km = 7.5 km
m_earth = 5.972 * 10^24 kg
m_sun = 2 * 10^30 kg

Formula
======
F_sun / F_earth = G *m_test * m_sun/(r_sun)^2 // G * m_test *m_earth / (re)^2
Again, there are cancellations
F_sun/F _ earth = [m_sun/m_earth ] * [(r_sun)^2 / (r_earth)]^2

Substitution and solution
===================
F_sun = 785 * (2*10^30 / 6*10^24) * (695700)^2 / (6371)^2 Note the radii do not have to be converted since the conversions would cancel anyway.

Solving this mess gives
F_sun = 3.12 * 10^12 Note I have rounded. You can put in the exact number.
This may not seem possible, but I don't think I've made an error. Now you go through the same process for the star. I leave that for you