Please help..!

How many photons does it emit in 1 sec. Lamp with a power of 90 W, if it emits monochromatic light with
wavelength 600 nm?

What is the relationship between the wavelength of a wave and it's energy?

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

Mga halaman/punong ornamental na di namumulaklak