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Two traveling sinusoidal waves are described by:y1=(5.00m) sin[4.00x-1200t] and y2=(5.00m) cos[4.00x-1200t]
Determine amplitude, wavelength, frequency and speed of the resultant wave.
A uniform disk with mass 39.5kg and radius 0.250 m is pivoted at its center about a horizontal, frictionless axle that is stationary. What is the magnitude a of the resultant acceleration of a point on the rim of the disk
A plastic block of dimensions 2.5 cm x 3.8 cm x 4.0 cm has a mass of 28.0 g. What is the density of the block? If placed into a cup of water, will the block float or sink
A large cylindrical water tank of diameter od D=3.00 m. What is the flow speed of the water when it comes out from the hole
In the circuit shown in the figure, the 6.0 ohm resistor is consuming energy at a rate of 23.0 J/s, Find the current through the ammeter in amps
A deep-space vehicle moves away from the Earth with a speed of 0.735c. An astronaut on the vehicle measures a time interval of 3.05 s to rotate her body through 1.00 rev as she floats in the vehicle. What time interval is required for this rotation a..
a crowbar is used to lift a weight. If a down ward force of 224 N is applied to the end of the bar, how much weight does the other end bear
A boat heads directly across a river. Its speed relative to the water is 3 m/s. How fast is the boat going relative to the bank of the river
A thief was trying to pull a 20 kg coffer (a coffer is a box usually used to hold valuables) along an essentially frictionless horizontal surface. What was the work done on the coffer by the rope
An electromagnetic wave with a frequency of 4.60×10^14 Hz propagates with a speed of 2.14×10^8 m/s in a certain piece of glass. Find the wavelength of the wave in the glass
A solid 2.5 kg ball with a radius 30 cm sits at top of ramp which is at an angle of 30 degrees from the floor. How much energy does the ball have at the bottom of the ramp
A turntable must spin at 33.7 rpm (3.53 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 3.0 revolutions, starting from rest? The turntable is a uniform disk ..
A parallel combination of a 1.11-?F capacitor and a 2.89-?F one is connected in series to a 4.65-?F capacitor. compute the charge of each capacitor
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