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An electronic attachment for camera produces flash by usingenergy stored in 880&10-6 F of capacitor, the capacitorrecharges through the resistor whose resistance is chosen so thatcapacitor recharges with a time constant of 2.4 s. Determine the value of resistance.
An unknown gas is introduced into the aforementioned apparatus using the same tuning fork, Find the speed of sound in the gas
A cannon fires a cannon ball with an Inital speed of 67 m/s at an angle of 35 degrees above the horizontal. what is the inital vertical velocity of the cannon ball
Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 1.05 percent of this energy to accelerate spaceships, then how many missions would be possible in one year
A disk with mass m = 8.5 kg and radius R = 0.35 m begins at rest and accelerates uniformly for t = 18.8 s, to a final angular speed of ? = 28 rad/s. What is the moment of inertia of the disk?
three 0.04 kg particles have been glued to a rod of length L = 13 cm and negligible mass and can rotate around a perpendicular axis through point O at one end. How much work is required to change the rotational rate
a 57 kg researcher absorbs 6.3*10^8 neutrons in a workday. The energy of the neutrons is 2.6 MeV. What is the equivalent dosage of the radiation exposure
While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north,300 m east, Find the resultant displacement from the cave entrance
A room with dimensions 7M X 8M X 2.5M is to be filled with pure oxygen at 22.0 degrees C and 1.00 atm. The molar mass of oxygen is 32.0 g/mol. How many moles of oxygen are required to fill the room
An RL series circuit has R= 78.0? and L= 2.00mH. The series combination is connected across a 165V(rms), 65Hz power supply. Find the impedance of the RLcombination
A pendulum of mass 0.25 kg and length L= 1.0 m is attached to a line which is fixed at point P, determine the force of tension in the line
At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid
Ultrasound used in a particular medical imager has frequency 4.8 MHz and wavelength 0.31mm . Find (a) the angular frequency, (b) the wave number, and (c) the wave speed.
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