A garden hose is held at an angle of 50°. Neglecting air resistance, the water will travel exactly the same horizontal distance before returning to the same level if the hose is held at an angle of
1) 40°.
2) 45°.
3) 60°.
For maximum range, the hose should be held at
4) 40°.
5) 45°.
6) 55°.
7) 60°.
Answer: 1, 5
You might also like to view...
In age, the surface of Venus is much ________ than even the lunar mare
Fill in the blank(s) with correct word
Large icebergs in the Arctic and Antarctic form as
A) frozen seawater thickens. B) sea ice forms next to continental land. C) glaciers calve into the sea. D) alpine glaciers melt in Arctic and Antarctic waters.
A solenoid consists of 100 circular turns of copper wire. Parts of three turns, A, B and C, are shown below
When a current flows through the coil,
a.
both A and C are repelled by B.
b.
A is attracted to B; C is repelled by B.
c.
neither A nor C is attracted to or repelled by B.
d.
A is repelled by B; C is attracted to B.
e.
both A and C are attracted to B.
Which of the following forces are exerted on a satellite that is in orbit around Earth?
A. an attractive gravitational force directed toward the center of Earth B. a force in the direction of the satellite's motion C. an outward force directed away from the center of Earth D. a and b