Two birds collide in midair. Before the collision, their combined momentum was 15 kg•m/s to the north. What is their combined momentum after the
collision?
A. 15 kg•m/s south
OB. 15 kg•m/s down
O c. 15 kg•m/s north
D. 15 kg•m/s east

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.

Question 1 (5 pts): what is the maximum distance for which you can you resolve the two individual headlights of an on-coming truck as two separate lights rather than one if the headlights are separated by 2.00 m and your eye has a diameter of 1.00 centimeter? assume a wavelength of 500 nm.

What happens when you slowly pulled the carboard?