A 0.30-m radius automobile tire rotates how many rad after starting from rest and accelerating at a constant 3.0 rad/s2 over a 5.0-s interval?
a. 12 rad
c. 37 rad
b. 25 rad
d. 0.50 rad
C
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Two converging lenses, the first with focal length 10.0 cm and the second with focal length 20.0 cm, are separated by 40.0 cm. An object, 3.00 cm in height, is placed 30.0 cm in front of the first lens. Where is the final image formed?
A. 11.1 cm after the second lens B. 100 cm after the second lens C. 45.0 cm after the second lens D. 5.00 cm after the second lens E. 5.00 cm before the second lens
Both conventional fossil fuel and nuclear power plants
A. contribute to the problem of acid rain. B. produce waste heat that can affect the weather or upset the ecology of rivers or lakes. C. produce carbon dioxide, which may increase global warming. D. produce hazardous waste products that must be stored in isolation for thousands of years.
________ binary star systems are important because they allow astronomers to determine the mass and the ________ of the stars in the system.
A. Spectroscopic; temperature B. Eclipsing; temperature C. Visual; temperature D. Eclipsing; diameter E. Spectroscopic; diameter
When two tectonic plates collide:
A) they both stop moving. B) they always produce high mountain chains like the Himalayas. C) volcanoes always mark the boundary between them. D) they continue moving, producing a variety of large deformations. E) that region is safe from earthquakes now the plates are fixed.