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Light of wavelength 620 nm falls on a slit that is 3.8 x 10^3 mm wide. Estimate how far the first bright diffraction fringe is from the strong central maximum if the screen is 10.0 m away.
What is the dissimilarity between sprinters and nonathletes
Because it can go from rest to 27.0 m/s (about 60 mi/h) in 4.0 s, one of the fastest-accelerating animals is the cheetah. determine the average power developed by the cheetah
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
A 2-g ping-pong ball rubbed against a wool jacket acquires a net positive charge of 1É C. Estimate the fraction of the ball’s electrons that have been removed. Suppose that the ball has 1 gram of neutrons, 1 gram of protons, and as many electrons as ..
Calculate the magnitude of the magnetic field at a point 175cm from a long, thin conductor carrying a current of 4.00A
A 61 kg skater and a 77 kg skater stand at rest on frictionless ice. They push off, and the 61 kg skater moves at 1.9 m/s in the + x-direction. What's the other's velocity? (Express your answer to two significant figures and include the appropriate u..
What is the speed of a free electron that has just barely enough kinetic energy to collisionally ionize a sodium atom in its ground state? What is the speed of a free proton with just enough kinetic energy to collisionally ionize this atom?
Vector A has a magnitude of 116 units and points 37.0 ° north of west. Vector B points 69.0 ° east of north. Vector C points 17.0 ° west of south. These three vectors add to give a resultant vector that is zero. Using components, find the magnitud..
A conducting rod of mass m is sliding on frictionless conducting rails in a region that has a static, uniform magnetic field directed into the page as shown. The rails slope downward from the end with the resistor so that the rod of mass m slides dow..
A skateboarder of mass 60.1 kg is riding her 3.89-kg skateboard at a speed of 5.21 m/s. She jumps backward off her skateboard, sending the skateboard forward at a speed of 7.53 m/s.
a 45.6 g sample of a conducting material is all that is available. the resistivity of the material is measured to be
The speed of a wave on a violin. A string is 288 m/s and on the G string is 128 m/s. Use the information to decide the ratio of mass per unit length of the strings. What assumptions were made?
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