The waves going to the right from antenna 1 and 2 are D_(1,R)=A sin⁡(kx-ωt) D_(2,R)= A sin⁡〖(k(x-L)-ωt+ϕ_2,0)〗 Write down the sum of the two waves 〖D_(net, R)= D〗_(1,R)+D_(2,R )and the phase difference Δϕ_R= ϕ_2- ϕ_1 between the two waves. On section 17.6 of the book where you will find the trigonometric identity:

To a of 4 x hz is 1. 0. mm nm nm

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.

On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281