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A phone cord is 5.1 m long. The cord has a mass of 0.165 kg. A transverse wave pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.885 s. What is the tension in the cord? Answer in units of N.
A squirrel has x- and y-coordinates ( 1.4m , 3.3m ) at time t1=0 and coordinates ( 4.8m , -0.40m ) at time t2 = 2.7s, Find the magnitude of the average velocity
A 88 g cube of ice at 0°C is dropped into 1.0 kg of water that was originally at 76°C. What is the final temperature of the water after the ice has melted
A car traveling at a speed of 18 m/s crashes into a solid concrete wall. The driver has a mass of 90 kg. What is the change in momentum of the driver as he comes to a stop
A 40 g block of ice is cooled to -78°C and is then added to 550 g of water in an 80 g copper calorimeter at a temperature of 24°C. find the final temperature of the system consisting of the ice
What phase difference between two otherwise identical harmonic waves, moving in the same direction along a stretched string, will result in the combined wave having an amplitude 1.4 times that of the amplitude of either of the combining waves? Exp..
A 3.60 {rm m}-long, 430 {rm kg} steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66 {rm kg} construction worker stands at the far end of the beam.
The filament of an incandescent light bulb typically has a temp of 2,850K. Find lamda max. Is this the wavelength within the visible band? Plot B lamda for this temp, using linear axes.
A radar device emits microwaves with a frequency of 1.86E+9 Hz. When the waves are reflected from a van moving directly away from the emitter, What is the speed of the van
q1. sunlight enters a room at an angle of 31 above the horizontal and reflects from a small mirror lying flat on the
neptune circles the sun at a distance of 4.50*10^12 once every 164 years. what is the orbital period of saturn
A uniform electric field of magnitude E = 500 N/C makes an angle of ? = 61.0° with a plane surface of area A = 3.80 m2, Find the electric flux through this surface
questionan astronaut shipwrecked on a remote planet with unidentified characteristics is on top of a cliff which she
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