Write a class named Room that has two fields one for the room’s length and one for the width. The class should have a constructor that sets the length and the width and a method named “getArea” that returns the room’s area (area = ½ length x width). It should also have a method named “isEqual” (with a Room argument)...
Problem 1a: Velocity Selector: Show that with the right ratio of electric to magnetic field strength a particle of velocity v will proceed through both fields in a straight line at constant speed (hint: you will need an equation containing v. Also: what does the straight line at constant speed give you?). Assume that the angle of the velocity vector...
A certain instant camera determines the dis- tance to the subject by sending out a sound wave and measuring the time needed for the wave echo to return to the camera. How long would it take the sound wave to return to the camera if the subject were 7 . 59 m away? The speed of sound is 343 m...
Consider a point 0.5 m above the midpoint of the two charges. As you can verify by removing one of the positive charges, the electric field due to only one of the positive charges is about 18 V/m. What is the magnitude of the total electric field due to both charges at this location? Show work
Please answer all 3 questions
17 1 The figure to the right shows two long, straight, current carrying wires, as well as a circular, current carrying loop of wire. If the currents listed have values of 1 = 3.30 A, I2 = 2.50 A, and 13 = 1.40 A, and the distance values listed are n = 18.0 cm, r2...
What is the speed of an electromagnetic wave with a frequency of 100 MHz as it travels through a vacuum? Less than c Depends on its wavelength Greater than c Equal to c
An electromagnetic wave score has a wavelength of 21 cm and an amplitude of 12 V/m. It is propagating in the direction and is linearly polarized in the plane. What is the polarization as direction? b) C.
The greatest intensity radiated electromagnetic wave is found where? a) closest to the antenna b) farthest from the antenna c) along the axis of the antenna d) off the axis of the antenna
[4]18. An electromagnetic wave travels in a certain material at a speed of 4.58 x107 m/s. The index of refraction for the material is Answer: Give your answer in the form "a.bc".
The electric field strength at one point near a point charge is 3000 N/CN/C . 1. What is the field strength if the distance from the point charge is doubled? Express your answer with the appropriate units. 2. What is the field strength if the distance from the point charge is halved? Express your answer with the appropriate units.