Physics, 27.06.2019 04:30 MadisonElle
Two plane electromagnetic waves travel along the z-axis, one moving to the right, and the other moving to the left both with the same frequency. their resulting magnetic fields are described by: b,(z, t): b1 cos(-kz-ut) i b2(z, t)-b2 sin(kz-ot) j note: bold font indicates a vector. i and j are unit vectors.) if b1 = 0.051 t, b2 = 0.036 t, and the frequency of the waves is 485mhz, what angle does the magnetic field make with the x-axis at t=0s and z=1.2m? measure from the x-axis; positive is counterclockwise and negative is clockwise.
Answers: 2
Physics, 22.06.2019 10:30
The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water
Answers: 2
Physics, 22.06.2019 13:40
Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
Physics, 22.06.2019 14:30
In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.
Answers: 1
Physics, 23.06.2019 09:00
Momentum lab this lab uses a phet simulation. navigate to the phet momentum simulation. if you donβt see the image below when you click on the link, then you need to either enable adobe flash (click on the puzzle piece on your screen) or you need to install adobe flash (this is a free program). change the vectors to be momentum vectors only. they are yellow. make the mass of both balls the same. hit play and notice what happens to the momentum vectors before and after the collision. you might want to play the sim multiple times. click on restart or return balls to start over. to see numbers, check the show values box (inside the green box). redβs momentum vector before the collision is greenβs momentum vector after the collision. question 1 options: shorter than longer than equal to question 2 (1 point) saved since green bounces off red, this must be an collision. question 2 options: explosion inelastic elastic question 3 (1 point) red transfers of its momentum to green during the collision. question 3 options: little all most none question 4 (4 points) why does red transfer all its momentum to green? back up your answer with information from the simulation. write at least 2 sentences.
Answers: 1
Two plane electromagnetic waves travel along the z-axis, one moving to the right, and the other movi...
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