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A car horn produces a sound with a frequency of 400 Hz. The horn is sounded while the car is moving down the street in the same direction as a bicycle which is ahead of the car. The bicyclist is moving down the street with 1/4.29 the speed of the car and hears a frequency of 432 Hertz. Determine the speed of the car (in m/s). The speed of the sound is 341 m/s.
Two particles each with charge +1.86 µC are located on the x axis. One is at x = 1.00 m, and the other is at x = ?1.00 m. (a) Determine the electric potential on the y axis at y = 0.320 m. .... kV (b) Calculate the change in electric potential energy..
An AC adapter for a laptop computer unit uses a transformer to reduce the line voltage of 110 V (rms) to a voltage of 18.5 V. What is the rms current delivered to the transformer
When two point charges are a distance R apart, their potential energy is -2.00 J. How far (in terms of R) should they be from each other
mars has a mass of 6.42 x 1023 kg and a radius of 3.40 x 106 m.a what is the acceleration due to gravity on mars?b how
An ideal transformer has 50 turns in its primary and 400 turns in its secondary. 8.0- ac is connected to the primary. What is the power supplied to the primary
Two rings of radius 5 cm are 20 cm apart and concentric with a common horizontal x-axis. The ring on the left carries a uniformly distributed charge of +35 nC, and the ring on the right carries a uniformly distributed charge of -35 nC. What is the e..
A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. If the woman balances on one heel, what pressure does she exert on the floor
John's mass is 91 kilogram, and Barbara's is 67 kilogram. He is standing on the x axis at xJ = +9.80 m, Determine how far and in which direction does their center of mass move as a result of the switch
A man exerts a 328 N force to move a box across a 3.55-m patch of ice. How much work does he do on the box.
a very long uniform line of charge has charge per unit length 3.90 microcm and lies along the x-axis. a second long
An object located 32.3 cm in front of a lens forms an image on a screen 9.69 cm behind the lens. Find the focal length of the lens. Answer in units of cm.
The third order diffracted beam from a Helium Neon laser is found at an angle of 58.7 degree from the zero order maximum. Find how many lines per cm are etched on the grating surface
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