An ice skater starts with a velocity of 2.25 m/s in a 50.0 direction. after 8.33 s, she is moving 4.65 m/s in a 120 direction. what is the x-component of her acceleration?
find the magnitude and

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.