A mirror has an object located on its principal axis 33.5 cm from the mirror's surface. A virtual image is formed 41.4 cm behind the mirror. What is the mirror's focal length?
a.-263.34 cm
.b. 64.81 cm
C. 175.56 cm
d. -0.38 cm
e. 9.26 cm

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

Steelhead trout migrate up stream to spawn. occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b. leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain