Author Question: A 400-m tall tower casts a 600-m long shadow over level ground. At what angle is the sun elevated ... (Read 46 times)

jjjetplane · **on:** Jul 27, 2018

A 400-m tall tower casts a 600-m long shadow over level ground. At what angle is the sun elevated above the horizon?

A) 33.7
B) 41.8
C) 48.2
D) 65.1
E) Can't be found; not enough information.

Question 2

A roller coaster car is on a track that forms a circular loop in the vertical plane. If the car is to just maintain contact with track at the top of the loop, what is the minimum value for its centripetal acceleration at this point?

A) g downward
B) 2 g upward
C) 0.5 g downward
D) g upward
E) 2 g downward