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An alpha particle (a He nucleus, containing two protons and two neutrons and having a mass of 6.48×10^-27 kg) traveling horizontally at 36.4 km/s enters a uniform, vertical, 1.06 T magnetic field.
A. What is the diameter of the path followed by this alpha particle? d=? mm
B. What effects does the magnetic field have on the speed of this particle?
C. What are the magnitude of the acceleration of the alpha particle while it is in the magnetic field?
D. What are the acceleration of the alpha particle while it is in the magnetic field?
A krypton laser produces a cylindrical red laser beam 3mm in diameter with 4W of power. What is the light intensity on a wall 5.0 m away from the laser.
Measurements with microelectrodes have shown that a 0.30-nm-diameter potassium ion(K+) channel carries a current of 1.8 pA, How many potassium ions pass through if the ion channel opens for 1.0 ms
If the current in the circuit is 0.15 A and the resistances are R1 = 100 ? and R2 = 260 ?, what is the emf of the battery.
100.0 W tungsten filament bulb generates 95.0 W of heat, which dissipated through glass bulb which has radius of 3.00 cm and 0.500 mm thick. If thermal conductivity of glass is 0.836 W/m°C, determine difference in temp. between inner and outer sur..
Two insulating spheres having a radii of 0.44cm and 0.64cm, masses 0.16kg and 0.49kg, How fast is the smaller sphere moving when they collide
A battery with an emf of 1.50 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 1.40 V, what is the resulting current
Three point charges are on the x-axis. The first is located at -4 meters asn has a charge of -6 coulombs. What is the net force on the charge at the origin
The catapult on an aircraft carrier can take an aircraft weighing 300,000 N from 0 to 80.6 m/s in 12.6 seconds, find the acceleration of the aircraft when it launches
A rotating cylinder about 18km in length and 6km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that residents on it will experience the same acceleration because of gravity on Earth.
q1. a superconducting solenoid is to be designed to have an interior field of b 29t with a maximum current of i1000a.
The plates of a 3.1 nF parallel-plate capacitor are each 0.27 m^2 in area. How far apart are the plates if there's air between them
A 80-kg driver can decrease his rotation rate in a flip from an initial rate of 3.0rev/s to a final rate of 1 rev in 2 sec by straightening his body. find his final moment of inertia, then find his initial moment of inertia
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