12. An object is thrown from the ground with an initial speed of 60m/s at an angle of 30gegrees to the horizontal. The time the ball is in the air is
O A.5.8 s
O B.6.15
O C.125
D. none of the above

HEL

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

If the new moon happens on january 15th, what shape will it be on february 6th?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?