Abby throws a ball straight up and times it. She sees that the ball goes by the top of a flagpole after 0.500 s and reaches the level of the top of the pole after a total elapsed time of 4.10 s. What was the speed of the ball at launch?
A) 11.3 m/s
B) 22.6 m/s
C) 33.9 m/s
D) 45.2 m/s
E) 48.3 m/s
B
You might also like to view...
A sound wave traveling in air hits the surface of a body of water. Is the reflected wave (A) inverted or (B) upright?
A. Inverted B. Upright
Motorcycle Mike is traveling behind an ambulance with a speed of 40 mph. The ambulance, traveling in the same direction, has a speed of 70 mph. When Mike hears the ambulance's siren, the frequency is _______ the actual frequency.
A. higher than B. the same as C. lower than
The Big Rip refers to the
A) accelerating influence of dark energy, causing all matter to become completely ripped apart. B) phenomenon of dark energy causing the universe to rip into multiple spacetimes. C) possibility that galactic centers may suddenly implode causing galactic disintegration. D) phenomenon of dark energy decelerating, causing all matter to disintegrate.
Data on binary galaxies is analyzed to determine their average masses under the assumption that they, like binary stars, have ________ orbits
Fill in the blank(s) with correct word