Four wave functions are given below. I. y(x, t) = 5sin(4x – 20t + 4) II. y(x, t) = 5sin(3x – 12t + 5) III. y(x, t) = 5cos(4x + 24t + 6) IV. y(x, t) = 14cos(2x – 8t + 3) Use this exhibit to answer the following question(s). Rank the wave functions in order of the magnitude of the wavelengths, from least to greatest
a. IV, II, I, III
b. IV, I, II, III
c. I, II, III, IV
d. IV, II, III = I
e. I = III, II, IV
e
You might also like to view...
Why does ice float on water?
a. Ice is hydrophobic and repels water. b. Water molecules have less mass the colder they get. c. Water molecules are spaced farther apart in ice than in liquid water. d. Vibrating electrons in liquid water push ice to the surface. e. Hydrogen bonds are weaker in ice.
For an exothermic reaction, the energy barrier is ______________ on the reactant side than on the product side
a. smaller b. not different in size c. greater
High-speed stroboscopic photographs show that the head of a golf club of mass 200 grams is traveling at 55.0 m/s just before it strikes a 46.0-gram golf ball at rest on a tee. After the collision, the clubhead travels (in the same direction) at 40.0 m/s. Find the speed of the golf ball just after impact
Springs: A heavy dart and a light dart are launched horizontally on a frictionless table by identical ideal springs. Both springs were initially compressed by the same amount. Which of the following statements about these darts are correct? (There could be more than one correct choice.)
A. The darts both have the same kinetic energy just as they move free of the spring. B. The lighter dart leaves the spring moving faster than the heavy dart. C. The heavy dart had more initial elastic potential energy than the light dart. D. Both darts move free of the spring with the same speed. E. Both darts had the same initial elastic potential energy.