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Q1. A 220 g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.150 s. If the total energy of the system is 3.50 J.
Q2. A spherical cavity of radius 4.50 cm is at the center of a metal sphere of radius 18.0cm. A point charge Q = 5.50 mC rests at the very center of the cavity, whereas the metal conductor carries no net charge. Find out the electric field at a point.
(a) 3.0 cm from the center of the cavity
(b) 6.0 cm from the center of the cavity
Three resistors with values of 2.7 , 3.8 , and 6.4 , respectively are connected in parallel in a circuit with a 24 V battery. How much current is delivered to the circuit by the battery
An electron is in a certain energy state in a one-dimensional, infinite potential well from x = 0 to x = L = 125 pm. What is the change in the electron's energy
We drop a 26-g ice cube (0C) into 1000 g of water (20C). Find the total change of entropy of the ice and water when a common temperature has been reached
Two infinite parallel plates separated by distance S are at potentials 0 and V0. What are the charge densities on the plates
In one such test, 150 turns of wire were wrapped around a 7.0-m-diameter cylindrical shark tank. find the magnetic field strength in the center of the tank
An old wooden telephone pole with a single cross member was blown off center during a recent storm. To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member
q1. a student calculates the frequency of a waveform produced through a tuning fork to be 303 hz. if the tuning fork is
A thin wire of length 3.14 meters has a current of 6.00 Amperes running through it. what is the magnetic field (in Tesla) inside the cylinder
A cannon ball (m=.7 kg) traveling at 200m/s hits and is impeded into a 400 kg car. If the car was initially at rest, what will be its velocity after the impact
003 10.0 points A wire is made of a material with a resistivity of 1.72779 × 10^ ?8 ? · m. estimate the resistance of the wire?
The water is 186 cm deep and the bottom of the pool is a large mirror. Where is the image of the light bulb when viewed from near normal incidence
A 60.0kg skier starts out at the top of a hill from rest and does 2000J of work with his poles while skiing down 2000m to the base 90.0km lower than the top. calculate the average friction force acting on him
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