The work function of indium is W0 = 4.09 eV. (a) What is the maximum wavelength of incident light for which photoelectrons will be released from indium? m (b) What is the minimum frequency of incident light, called the cutoff frequency, for which photoelectrons will be released from indium? Hz (c) What is the maximum kinetic energy of photoelectrons emitted by indium if 7.50-eV photons strike its surface? eV

A10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. they are then released so that the spring pushes the two carts apart. the 10.0 kg cart is moving at 4.5 m/s afterward. how fast is the 15kg cart moving? 3.0 m/s 2.0 m/s 4.5 m/s 5.0 m/s

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?

Which of the following are guidelines to follow for obtaining accurate observations