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A wheel of radius 1.5m rotates at a constant angular velocity. A point at the edge of the wheel experiences centripetal acceleration of 1.2m/s^2. What is the linear speed of that point?
A certain system emits electromagnetic radiation of wavelengths 'lambda'1=310nm, 'lambda'2=207nm and 'lambda'3=124nm. what are the other energy levels
A total of eight tiny conducting spheres, each carrying a charge of-105 nC, are placed one each at thecorners of a cube 1.0 m on a side. What is the electric field at the center
Consider a 1-D NaBr lattice. The frequency at the optical mode at k=pi/a is f=10.1THz. find the frequency for the optical mode at band center (k=0)
A 1 000-kg experimental rocket sled on level frictionless rails is loaded with 50 kg of propellant. It exhausts the propellant in a 20-s "burn." what impulse is experienced by the rocket sled
a uniform disk with radius r = 10.0 cm and mass 650 g attached to a uniform rod with length L = 640 mm and mass 300 g. Calculate the rotational inertia of the pendulum about the pivot point
a an ambulance leaves the police station in big city and travels 7 blocks north then 7 blocks east to pick up a
Light from a 554-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 22 °
The angular velocity of a flywheel obeys the equation , where is in seconds and and are constants having numerical values 2.45 (for ) and 1.60 (for ). Part D What is the angular acceleration of the wheel at = 2.50 ? Part E Through what angle does ..
A wire of resistance 9.0 is connected to a battery whose emf script e is 5.0 V and whose internal resistance is 1.0. How much energy appears in the wire as thermal energy in that time
The body contains many small currents caused by the motion of ions in the organs and cells. how large is the current in the heart
An eagle with 1.8m wingspan flaps its wings 21 times per minute, each stroke extending from 42%u2218above the horizontal to 42%u2218 below. What's the average tangential velocity of the wingtip
An atom is ionized so that it has only one electron. When the electron drops from the n = 3 shell to the n = 1 shell, What is the atomic number
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