A 900-kg car traveling east at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together.
(a) What is the speed of the wreckage just after the collision? (b) In what direction does the wreckage move just after the collision?
Question 2
Four point charges, each of charge 2.5 x 10-5, are located on the x- and y-axes, one at each of the locations (0, 2.0 m), (0, -2.0 m), (2.0 m, 0), and (-2.0 m, 0). The potential at the origin is
A)
2.3 105 V.
B)
4.5 105 V.
C)
3.5 105 V.
D)
1.1 105 V.
E)
0.
White-winged Duck at Sylvan Heights Waterfowl Park, North Carolina
Only 750 mountain gorillas remain in two tiny forests in East Africa.
Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The
North Atlantic Oscillation
A horizontal, 2.00 m long, 3.00 kg uniform beam that lies along the east-west di