At a concert you sit 12 m directly in front of one of the two speakers on the front of the stage. The other speaker is 8 m from the first. What frequencies in the human hearing range will sound soft to you? (Just get the first two or three!)

At what fractions of a wavelength do the first and second resonances occur? Using dimensional analysis, show that the quotient of speed and wavelength produces a unit similar to frequency. If a block, regardless of the material, floats on water, what will be the net force acting on the block? What is […]

Turn in your answers to the following problems below. As always, make sure to show all of your work. 1. Sound waves travel through an aluminum bar at a speed of 1400 m/s. If the frequency of the sound wave is 1000 Hz, what is the distance between crests on a sound wave traveling through […]

ECE 210 week 4 Analysis of AC Series and Parallel RLC Resonance Circuits using Simulation

ECE 210 week 6 Frequency Response of Low Pass, High Pass and Band Pass Filters

Consider a system consisting of 3 charges. A 1 C charge is located at x = 0, a 2 C charge is located at x = 2 cm and -1 C charge is located at x = 5 cm. a. Obtain an expression and sketch a plot of electric potential as a function of […]

What is a catapult ? What is the traditional use of a catapult ? When were catapults in greatest use ? what traditional materials for construction and projectiles are used ? What are some types of catapult-Like devices ?

Calculate the maximum range when radar operates at 10GHz and has peak power=10 Mwatt,S/N ratio=10dB,antenna cross section=100 mm2,target cross section=10mm2.The gain of transmitting antenna is 15dB.

EE 105 Fundamentals of DC circuits Midterm and Final Exam

When two light bulbs are connected in series, Bulb A is brighter than Bulb B. If the positions of the bulbs were reversed, which of the following is true: Bulb A would still be brighter or Bulb B would be brighter since it’s first in the series? Explain your reasoning. AT LEAST 100 WORD […]