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A student holds a tuning fork oscillating at 260 Hz. He walks towards a wall at a constant speed of 1.16 m/s.
What beat frequency does he observe between the tuning fork and its echo?
How fast must he walk away from the wall to observe a beat frequency of 4.50 Hz?
two objects m1=5.10 kg and m2=3.25 kg connected by light spring passing over a light frictionless pulley. determine the speed of each object when the two pass each other
A 230V shunt motor having an armature resistance of 0.05 ? and a field resistance of 75?? draws a line current of 7 A while running light at 1120 rev/min. determine the total core and mechanical losses
Two 2.1 cm 2.1 cm square aluminum electrodes are spaced 0.57 mm apart. What is the magnitude of the charge on each electrode
A 20 g bullet inelastically collides with a 3 kg wooden block at rest. find How much energy is lost in the collision
What is the frequency of ultrasound in a medium if he wave length is 3.0 x 10^-3 m and velocity is 1300 mm/ms.
A parallel-plate capacitor with circular plates of radius R is being charged. What is the radius R for the circular plate
Find out line linking the two point charges
Three resistors, 28, 48, and 80 ?, are connected in series, and a 0.53-A current passes through them. What is the potential difference across the three resistors
A planet's moon travels in an approximately circular orbit of radius 6.6 x10^7 m with a time of 7 h 9 min. Calculate the mass of the planet from this information.
A 130 block on a frictionless table is firmly attached to one end of a spring with = 40. The other end of the spring is anchored to the wall. A 21 ball is thrown horizontally toward the block with a speed of 6.6.
Imagine that you are riding a bicycle facing due east, and travelling forwards. In what direction is the angular momenta of the bicycle wheels
what is the final Velocity of a hoop that rolls without slipping down a high hill, starting from rest
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