[Answered] When a star collapses to half size, the gravitational field at its surface A) doubles. B) ...

This topic contains a solution. Click here to go to the answer

Author Question: When a star collapses to half size, the gravitational field at its surface A) doubles. B) ... (Read 105 times)

Sportsfan2111

Hero Member
Posts: 585

on: Jul 29, 2018

When a star collapses to half size, the gravitational field at its surface

A) doubles.
B) quadruples.
C) increases eightfold.
D) remains constant.

Question 2

Compared to the event horizon, the photon sphere of a black hole is

A) nearer the singularity.
B) farther from the singularity.
C) at the same location.

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

kingfahad97

Sr. Member
Posts: 308

Reply #1 on: Jul 29, 2018

Answer to Question 1

Answer: B

Answer to Question 2

Answer: B

Sportsfan2111

Member
Posts: 585

Reply 2 on: Jul 29, 2018

Wow, this really help

milbourne11

Member
Posts: 322

Reply 3 on: Yesterday

TYSM

« previous next »

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.