7. The maximum kinetic energy of photoelectrons Varies linearly with the frequency of the incident radiation
Varies linearly with the wavelength of the incident radiation
(iii) Proportional to the intensity of the incident radiation
(iv) Proportional to the square of the frequency of the incident radiation

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Which articulations allow for greatest range of motion?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?