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Two sinusoidal waves, identical except for phase, travel in the same direction along a string producing a net wave y'(x, t) = (2.5 mm) sin(17x - 4.0t + 0.840 rad), with x in meters and t in seconds. (Assume that the phase constant for one of the individual waves is zero.) (a) What is the wavelength λ of the two waves? m(b) What is the phase difference between them? rad(c) What is their amplitude ym? mm
A professor drives off with his car (mass 820 kg), but forgot to take his coffee mug (mass 0.38 kg) off the roof. What is the maximum acceleration of the car
A heat engine has an efficiency of 61.5% and it exhausts 7500 J of waste heat into the environment. How much work is performed by the previous heat engine
You are driving south on a highway at 28 (approximately 63 ) in a snowstorm. Estimate the speed of the snowflakes relative to the car
The electric motor of a model train accelerates the train from rest to 0.600m/s in 18ms. The total mass of the train is 515g. Find the average power delivered to the train
What is tension T in each of the cables
The distance between successive crests of a sound wave is 33m. what is the approximate frequency of the sound wave
A charge of 3.0 x 10^8 C exerts a force of 0.045 N on a charge of 5.0 x 10^-7 C. How far apart are the charges
In a RLC circuit, the rms current is 7.00 A, the maximum voltage 230. V and the current lags behind the voltage by 53.0 degrees. Find the average power dissipated in the circuit
What is the diameter of an air-filled coil with a 44 mH inductance, if it has 290 turns and the length of the coil is 76 cm
The temperature near the surface of the earth is 310 K. A xenon atom (atomic mass = 131.29 u) has a kinetic energy equal to the average translational kinetic energy, how high up would it go before coming to rest
During liftoff, a hot-air balloon accelerates upward at a rate of 3.5. What is the magnitude of the object's acceleration after it is released (relative to the ground)
A movie camera with a (single) lens of focal length 75.0 mm takes a picture of a 177 cm high person standing 30.0 m away
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