Answer:
The answer is A. White Dwarf
Explanation:
- <u>average stars like sun end their life as white dwarf surrounded by disappearing planetary nebula. </u>
Answer: friction can help you in many ways such as when you hit the brakes on your car or when you are washing your face
Explanation:
friction happens in just about everything you do
The sum of the two vectors in A, B, and C is equal to the sum of the two vectors above the line. The sum of the two vectors in D isn't.
We apply the gravity calculation expressed in the formula: g=GM/r2
where G is the gravitational constant, m is the mass and r is the radius
r=√GM/g
(1) Radius = √6.674e-11*5.972e24/8 = 7058 kms Earth radius or surface of earth from center of earth= 6400 kmsSo r= 658 kms from surface of earth.
Gravity 8m/s2 will be at 658 kms from surface of earth.
(2) half gravity= 9.8/2= 4.9 m/s2 Radius=√6.674e-11*5.972e24/4.9 = 9019 kms Half Gravity will exist at 9019-6400= 2619 kms from surface of earth.
no question please so what's the problem