Physics, 05.07.2020 05:01, yonna74

Two radio antennas A and B radiate in phase. Antenna B is 120 m to the right of antenna A. Consider point Q along the extension of the line connecting the antennas, a horizontal distance of 40 m to the right of antenna B. The frequency, and hence the wavelength, of the emitted waves can be varied. (a) What is the longest wavelength for which there will be destructive interference at point Q?
(b) What is the longest wavelength for which there will be constructive interference at point Q?

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 19:40, negritoboy014

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Answers: 1

continue

Physics, 21.06.2019 23:20, marc2007

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Answers: 1

continue

Physics, 22.06.2019 12:30, lmolder1329

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.

Answers: 1

continue

Physics, 22.06.2019 18:30, Natasha019

Which word expression describes how much to calculate pressure

Answers: 1

continue

Do you know the correct answer?

Two radio antennas A and B radiate in phase. Antenna B is 120 m to the right of antenna A. Consider...