Light waves are electromagnetic waves that travel at 3.00 108 m/s. the eye is most sensitive to light having a wavelength of 5.50 10-7 m.

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

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

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.