Afisherman casts his lure at an angle of 33 degrees above the horizontal. the lure reaches a maximum height of 2.3 m. assuming no frictional forces, what was the initial velocity the fisherman gave the lure when he cast it?

12.34 m/s
28.45 m/s
34.91 m/s
21.29 m/s

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.