Which has the most kinetic energy from its motion?
a) a 1,100-kg car traveling 60 km/h
b) a 300-kg motorcycle traveling 100 km/h
c) a 900-kg car traveling 80 km/h
d) a 2,000-kg truck traveling 50 km/h

What type of electromagnetic wave is used in security pens? a. x-rays c. microwaves b. visible light d. ultraviolet radiation select the best answer from the choices provided

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?