Physics, 10.07.2019 18:30 parislightbourne77
Suppose you are adding two sound waves with equal amplitudes a and slightly different frequencies fi and f2. let us write the equations for the time dependence of these waves (at a fixed position x) as = a cos(2t fit) a cos(2t f2t) ap (t) ap,(t) (1) (2) (a) using the trigonometric identities ( ) a b a-b (3) 2 cos cos a cos b cos 2 2 'a b sin a- b (4) sin a sin b 2 cos - 2 2 ap: (t) ap2(t) as a product of write the sum of your two sound waves aprot = two trigonometric functions (b) the two trigonometric functions which you found in the previous part have two different oscillation frequencies which depend on fi and f2. call these ffast and fslow write equations for ffast and fslow in terms of fi and f2. page 2 of 6 ryerson university - pcs 125 (c) suppose fi = 19h2 and f2 = 21h2. what are the first two times where the slowly oscillating trig function has a value of zero? these will be two times where the sound intensity is at a minimum (d) suppose fi = 19h2, and f2 = 21h2, sketch the resulting wave if these two sounds interfere with each other. the x-axis of your sketch should be at least 1.0 second long. hint: the product of two trig functions can be thought of as a "cosine within a cosine" (or a "sine" within a cosine", for example, the trig function with the longer period can be thought of as amplitude of the faster oscillating function. thus, you have a fast oscillation whose amplitude varies slowly in a sinusoidal manner.
Answers: 2
Physics, 22.06.2019 04:30
Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?
Answers: 1
Physics, 22.06.2019 04:30
In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.
Answers: 1
Physics, 22.06.2019 12:10
Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
Answers: 3
Suppose you are adding two sound waves with equal amplitudes a and slightly different frequencies fi...
Mathematics, 31.03.2020 04:42
Computers and Technology, 31.03.2020 04:42
Mathematics, 31.03.2020 04:42