List and describe the two types of waves
What will be an ideal response?
In a transverse wave, the vibration of the particles of the medium is perpendicular to the motion of the wave itself. In a longitudinal wave, the vibration of the particles of the medium is along the direction of the wave's motion.
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Impedance is the total, or effective, opposition to current that takes into account both resistances and reactances
Indicate whether the statement is true or false
A crank is being turned clockwise at 120 rev/min. The handle is 10 cm from the axle of the crank
An observer some distance away sees the crank edge-on so he only perceives the vertical motion of the crank and not the horizontal motion. What equation describes the motion of the handle seen by the observer if at t=0 the crank is at y = 0 and moving in the negative y direction? A) y = (10 cm)cos((12.6 rad/s)t +3?/2 ) B) y = (10 cm)cos((12.6 rad/s + ?)t) C) y = (10 cm)cos((12.6 rad/s)t - ?/2 ) D) y = (10 cm)cos((12.6 rad/s)t) E) y = (10 cm)cos((12.6 rad/s)t + ?/2 )
The charge of some quarks or anti-quarks is:
a. 0. c. 1 (1.6 × 10^-19) C. b. 1/2 (1.6 × 10^-19) C. d. 1/3 (1.6 × 10^-19) C.
Each 2.0-m length of a long cylinder (radius = 4.0 mm) has a charge of 4.0 nC distributed uniformly throughout its volume. What is the magnitude of the electric field at a point 5.0 mm from the axis of the cylinder?
a. 9.9 kN/C b. 8.1 kN/C c. 9.0 kN/C d. 7.2 kN/C e. 18 kN/C