An FM station broadcasts at a frequency of 100 MHz. The wavelength of its carrier wave is ________
Fill in the blank(s) with correct word
3 meters
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Three resistors with values R1, R2, and R3, respectively, are connected in parallel. Which of the following expresses the total resistance, RT, of the three resistors when connected in parallel?
a. RT = (1/R1 + 1/R2 + 1/R3) c. RT = R1 + R2 + R3 b. RT = R1 = R2 = R3 d. RT = (1/R1 + 1/R2 + 1/R3)-1
A plane stress element on a bar in uniaxial stress has a tensile stress of ?? 5 78 MPa (see figure). The maximum shear stress in the bar is approximately:
(A) 29 MPa
(B) 37 MPa
(C) 50 MPa
(D) 59 MPa
Estimate the distance (in cm) between the central bright region and the third dark fringe on a screen 5.00 m from two double slits 0.500 mm apart illuminated by 500-nm light
a. 3.47 b. 2.15 c. 1.75 d. 1.50 e. 1.25
A runner circles a track of radius 100 m in 100 s moving at a constant rate. If the runner was initially moving east, what has been the runner's average acceleration when halfway around the track?
a. At a constant rate, the average acceleration would be zero. b. 0.13 m/s2, south c. 0.25 m/s2, west d. No answer is correct.