What is the calculation of the impulse on an object if a box is pushed 10 N for 2 sec? A. 5 N-s

B. 12 N-s

C. 8 N-s

D. 20 N-s

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?