A box is launched up a frictionless incline with an angle of elevation ?. The maximum height reached by the box is h. The box is again launched up the incline with the same initial speed it had before, but this time the angle of elevation has been increased to ?. How does the maximum height H reached this time by the box compare with the previous value h?

a. H = h b. H > h
c. H < h d. H = ((sin?)/(sin?))


a

Physics & Space Science

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The annealing point for the soda-lime glass in Figure 9.3 is approximately _________K

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This bar graph is based on statistical study of results from the Kepler mission. Which of the following conclusions is supported by the graph?

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If a galaxy is receding from us at 0.10c. Use Hubble's law to estimate the distance to this galaxy if the Hubble constant is 22 km/s per million light-years. (c = 3.00 × 108 m/s, 1 ly = 9.461 × 1015 m, 1 y = 3.156 × 107 s)

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How do you think citrus growers in Florida might use heat of fusion to protect against frost damage?

Physics & Space Science