A battery in a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 3 ohms. What is the voltage of the battery?
6 volts
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It is believed that ring galaxies form
a. when two galaxies collide nearly head on at high speed. b. when two spiral galaxies collide, but not directly head on. c. from a large cloud of gas and dust with very little angular momentum. d. from a large cloud of gas and dust with a very high angular momentum. e. when more than two galaxies collide at the same time.
X-rays easily penetrate Earth's atmosphere and reach the ground from space
a. True b. False Indicate whether the statement is true or false
How far are you from your image when you stand 0.750 m in front of a vertical plane mirror?
A) 1.50 m B) 0.750 m C) 0.375 m D) 3.00 m
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°.