In the photoelectric effect experiment, current flows when the light frequency is:

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?

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

Write a polynomial function with the given zeros x= -1,0,2show your work