Spaceship 1 and spaceship 2 have equal masses of 300 kg. they collide. spaceship 1's final speed is 3 m/s, and spaceship 2's final speed is 2 m/s in the same direction. what is their combined momentum?
a. 1200 kg
b. 900 kg
c. 1500 kg
d. 600 kg

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.

Give an example of how both short term and long term memory are involved. explain procedural, semantic ,and episodic memory and then how each is involved in this

What system does a dentist chair system use? pneumatic or hydraulic system?