A rock is thrown at a window that is located 18.0 m above the ground. The rock is thrown at an angle of 40.0 above horizontal. The rock is released from a height of 2.00 m above the ground with a speed of 30.0 m/s.
If the rock strikes the window on its upward trajectory, from what horizontal distance from the window was it released? A)
53.2 m
B)
48.7 m
C)
71.6 m
D)
29.8 m
E)
27.3 m
Question 2
A 2.00-kg mass object traveling east at 20.0 m/s collides with a 3.00-kg mass object traveling west at 10.0 m/s.
After the collision, the 2.00-kg mass has a velocity 5.00 m/s to the west. How much kinetic energy was lost during the collision?
A)
0.00 J
B)
458 J
C)
516 J
D)
91.7 J
E)
175 J
The Grants and natural selection of beak size among the medium ground finch.
A first aid box should be centrally located in the shop and kept stocked with the recommended ...
Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away
Blunt percussion over the left costovertebral angle
Double Angle Identity