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1) a charge q= 8 uC is moving along the x axis with a velocity of v=4 x 10^4 m/s. a magnetic field of magnitude B=3T is along the y-axis. a) find the magnitude and direction of the net force acting on the charged particle. b) if the velocity makes an angle of 30 degrees with the x axis find the magnitude and direction of the force.
2) Four equal charge, each of value -9 uC is placed on the corners of a square of side 20 cm; a) find the total electric potential at the center of the square, b) if the charges on the opposite sides of the diagonals are equal and opposite, what is the total potential at the center of the square.
3) a 5.0 uF capacitor, a 2.0 K omega resistor, a 60V battery and a switch are all connected in series. a) what is the current in the circuit immediately the switch closed? b) what is the current in the circuit a long time after the after the switch is closed? c) find the maxium charge accumlated on the capacitor d) what is the time constant e) find the voltage on the capacitor at t=20 ms f) what is the energy stored in the capacitor at t= 20ms
4)Given r1=20 ohms r2=40 ohms r3=60 ohms and the battery V=12V, a) find Req b) the current through each resistor c) the voltage across each resistor d) the total power supplied by the source
A sailboat on the ocean has a mast of height 18.5 m. When viewed through a pair of binoculars the mast has an angular size of 0.065 rad. compute the distance between the observer and the sailboat
You are now studying a length of wire that has been coiled up to create a circular coil of 4 turns all arranged compactly, The loop has radius of 0.0240 m and a current of 49.5 A, What is the strength of the magnetic field at the center of the loop
how much time passes before the brick lands on the ground.
The temperature of the surface of a certain star is 7500K. Most hydrogen atoms at the surface of star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could e..
An 8300-pF capacitor holds plus and minus charges of 1.35×10?7C. What is the voltage across the capacitor
What is the phase constant of the motion and what are its position and direction of travel at t = 2.00 s, what is the first time when the object is at maximum velocity?
Write the formula of the root-mean-square deviation (RMSD) between two molecular structures - Computational Biophysics and Nanoscale Simulations
Find the total number of lines in a 2.90 wide diffraction grating whose third-order spectrum has the 640 hydrogen- spectral line at an angular position of 39.0.
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
What is the least thickness of a soap bubble film (n = 1.38) on which light of wave length 610nm shines, assuming one observes constructive interference of the reflected light.
A snowboarder starts from rest and glides down a hill that is 100m high. Assuming no friction, what is her speed at the bottom of the hill
Consider an ideal gas at 27 degree C and 1 atm. To get some idea how close these molecules are to each other, What is the length of an edge of each cube if adgacent cubes touch but not overlap
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