Velocity: A motorist travels for 3.0 h at 80 km/h and 2.0 h at 100 km/h. What is her average speed for the trip?
A. 85 km/h
B. 88 km/h
C. 90 km/h
D. 92 km/h
Answer: B
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Two masses m1 and m2, having m1 > m2, are launched with the same speed in the direction b. Which mass reaches the greatest height?
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
If the stress amplitude in a fatigue test is below the endurance limit, the number of cycles to failure approaches _________.
Fill in the blank(s) with the appropriate word(s).
The solar wind extends to the _______________, marking an outer boundary of the Solar System
Fill in the blank(s) with correct word