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An ideal, massless spring with spring contant kmL = 120 N/m hangs from the ceiling. When a block of mass 1 = 1 kg is attached to the end of the spring and the system is allowed to reach equilibrium, the length of the spring is 1 = 0.5 m.
What is the magnitude of the force by the spring on the block, in N?
Assume that the diameter of the solenoid is small compared to the radius of the toroid, which is 0.051 m. Find the emf induced in the toroid when the current decreases to 1.0 A from 2.6 A in a time of 0.13 s
A circular loop of wire of radius 12.5 cm is placed in a magnetic field directed perpendicular to the plane of the loop, calculate the magnitude of the emf induced in the loop
A light rod of length 1.8 m has two point masses of mass 2 kg attached at either end. If the spring constant is 3.7 Nm.rad-1, what is the period of the resulting motion
A particle is moving around in a circle and its position is given in polar coordinates as x = Rcos?, and y = Rsin?, derive the equation for centripetal acceleration
Five clarinets sit a distance of 11.5 m from the audience. Together the intensity level of the music is 78.5 dB, What is the intensity of one clarinet
a) Starting with Newton's 2nd law, show (by an equation) that force relates to change in momentum. b) State this relationship as a sentence.
Multiple-Concept Example 13 presents useful background for this problem. determine the average power developed by the cheetah
a 3.59-f and a 5.68-f capacitor are connected in series across a 30.0-v battery. a 6.41-f capacitor is then connected
Calculate the number of coulombs of positive charge in 285 cm3 of (neutral) water. (Hint: A hydrogen atom contains one proton; an oxygen atom contains eight protons.)
In a series circuit, a generator (1500 Hz, 18.0 V) is connected to a 15.0- resistor, a 5.10-mH inductor and a 4.20-μF capacitor. Find the voltages across (a) the resistor, (b) the capacitor, and (c) the inductor.
The scale of a spring balance reading from zero to 180 N is7.00 cm long. A fish suspended from thebalance is observed to oscillate vertically at 2.50 Hz. What is the mass of the fish? Neglect themass of the spring.
An x-ray photon of 0.13 nm strikes a metal and undergoes Compton scattering of the electrons in the metal. find the wavelength of the scattered photon
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