A solid sphere is rolling without slipping along a horizontal surface with a speed of 5.50 m/s when it starts up a ramp that makes an angle of 25.0° with the horizontal. What is the speed of the sphere after it has rolled 3.00 m up the ramp?
A) 4.01 m/s
B) 8.02 m/s
C) 1.91 m/s
D) 2.16 m/s
E) 3.53 m/s
E
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The only spacecraft to have visited Uranus and Neptune was:
A) Pioneer 10. B) Pioneer 11. C) Voyager 1. D) Voyager 2. E) Cassini.
A cup of water containing an ice cube at 0°C is filled to the brim. The tip of the ice cube sticks out of the surface. As the ice melts, you observe that
A) the cup overflows. B) the water level actually goes down. C) the water level remains the same. D) the cup might overflow but it depends on the actual mass of the ice cube. E) There is not enough information to answer this question.
What wavelength monochromatic source in the visible region (390 to 710 nm) can be used to constructively reflect off a soap film (n = 1.46) in air if the film is 288 nm thick?
a. 561 nm c. 587 nm b. 480 nm d. 467 nm
A large nuclear power plant delivers energy of about
A. 1 megawatt B. 1 gigawatt C. 100 gigawatts D. 1000 gigawatts