Physics, 18.06.2020 00:57 Fireburntbudder
The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939 W/m^2 . The wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. How much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
Physics, 22.06.2019 01:30
What is the magnitude of the resultant vector round your answer to the nearest tenth
Answers: 2
Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Physics, 22.06.2019 20:00
What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?
Answers: 1
Physics, 22.06.2019 20:30
Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places
Answers: 2
The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939...
Mathematics, 07.02.2022 14:00
English, 07.02.2022 14:00
English, 07.02.2022 14:00
Mathematics, 07.02.2022 14:00
Mathematics, 07.02.2022 14:00
Mathematics, 07.02.2022 14:00
World Languages, 07.02.2022 14:00
Biology, 07.02.2022 14:00
Engineering, 07.02.2022 14:00
Biology, 07.02.2022 14:00
Mathematics, 07.02.2022 14:00
Mathematics, 07.02.2022 14:00