Use the momentum equation for photons found in this week's notes, the wavelength you found in #3 (656E-9), and Planck's constant (6.63E-34) to calculate the momentum

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?