Dark matter can be described as matter that
a. does not exert gravitational force but can be directly detected with light
b. cannot be directly detected and does not emit or absorb light
c. exerts gravitational force and makes up most of the stars and planets as 3% of the universe

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.