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.
The ossicles of the middle ear along with the oval window and tympanic membrane.
Layers of Rock Laid Down by Water
Forms of primary adult glaucoma: (a) in chronic open-angle glaucoma, the anterior chamber angle rema
Finding the angle from a ratio (Part 1)