physics (check my answers)
posted by Jacob .
When the nuclear fuel in the sun is gone, the sun will collapse to a
a. black hole
b. white dwarf
d. neutron star
My answer: I think its a black hole.
If the mass of the Earth were suddenly doubled while the radius was unchanged, your weight would be?
My answer: increased by a factor of two.
How would the earth move if the sun were to suddenly vanish from existence?
My answer: move in a straight line tangent to its previous orbit.
A satellite is moving at a constant velocity around the Earth. The net force on it is?
My answer: It would be directed toward the Earth
The first is wrong; The mass of the Sun is not great enough, however it will shrink, and be white.
The others are ok.