Alight source of wavelength λ illuminates a metal and ejects photoelectrons with a maximum kinetic energy of 2.00 ev. a second light source with half the wavelength of the first ejects photoelectrons with a maximum kinetic energy of 6.00 ev. what is the work function of the metal?

Ahonda civic travels in a straight line along a road. its distance x from a stop sign is given as a function of time t by the equation x(t)= î± t2â î² t3, where î± = 1.53 m/s2 and î² = 5.50ã10â2 m/s3 .

What do you think car designers do if the damage caused by a crash test is too severe?

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.