Author Question: A 35-mm camera equipped with a 95 mm focal length lens is used to photograph a tree that is 8.0 m ... (Read 36 times)

Cooldude101 · **on:** Jul 29, 2018

A 35-mm camera equipped with a 95 mm focal length lens is used to photograph a tree that is 8.0 m tall. A 32 mm high image of the tree on the film is needed.

The required distance, between the tree and the camera lens, to take the photograph is closest to
A) 26 m. B) 27 m. C) 24 m. D) 25 m. E) 29 m.

Question 2

A car is moving with a velocity (3.0 m/s)x + (1.0 m/s)y and 2.5 seconds later its velocity is (6.0 m/s)x - (3.0 m/s)y. What is the magnitude of the average acceleration of the car?

A)

0.82 m/s2

B)

1.6 m/s2

C)

2.0 m/s2

D)

4.5 m/s2

E)

6.2 m/s2