At the same moment from the top of a building 3.0 × 102 m tall, one rock is dropped and one is thrown downward with an initial velocity of . Both of them experience negligible air resistance
How much EARLIER does the thrown rock strike the ground?
A) 0.95 s
B) 0.86 s
C) 0.67 s
D) They land at exactly the same time.
Answer: A
You might also like to view...
A(n) ____________________ universe is infinite and would have a density equal to the critical density
Fill in the blank(s) with correct word
Which has more energy per photon?
A) red light B) blue light C) both the same
Beats: Two taut strings of identical mass per unit length are stretched with the same tension with their ends fixed, but one string is 0.330 cm longer than the other. Waves on these strings propagate at 34.0 m/s.The fundamental frequency of the shorter string is 258 Hz. What is the beat frequency when each string is vibrating at its fundamental frequency?
A. 12.3 Hz B. 9.00 Hz C. 12.0 Hz D. 12.7 Hz E. 11.3 Hz
Which living organisms most resemble the common ancestor of all life according to genetic testing?
A) bacteria such as E. coli B) organisms living deep in the oceans around seafloor volcanic vents and in hot springs C) plankton that use sunlight as an energy source through photosynthesis D) viruses E) stromatolites