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1) Which statements about the force on a charged particle placed in a magnetic field are true?
a) A magnetic field always exerts a force on a charged particle.
b) The direction of the force is along the magnetic field.
c) The force is a maximum if the particle is moving in the direction of the field.
d) The force causes the particle to gain kinetic energy.
e) A magnetic force is exerted only if the particle is moving.
2) A 42-cm-long solenoid, 1.8?cm in diameter, is to produce a 0.030-T magnetic field at its center. If the maximum current is 4.6 A , how many turns must the solenoid have?
What is the maximum speed with which a 1200- car can round a turn of radius 71 on a flat road if coefficient of static friction between tires and road is 0.45.
What is the total negative charge, in coulombs, of all the electrons in a small 1.05{\rm g} sphere of carbon? One mole of C is 12.0{\rm g} , and each atom contains 6 protons and 6 electrons.
A siren has a frequency of 750 Hz when it is at rest, whereas it has an apparent frequency of 800 Hz when it is moving toward a stationary observer
If air resistance is negligible, using energy considerations alone, how fast must the ball be going after it falls 200 meters.
Four point charges have the same magnitude of 2.3 × 10-12 C and are fixed to the corners of a square that is 3.8 cm on a side, Determine the magnitude of the net electric field that exists at the center of the square
the space shuttle is in a 230 mile high orbit. what are the shuttles orbital period in minutes and its speed.
A boy on board a cruise ship drops a 30.0 g marble into the ocean. If the resistive force proportionality constant is 0.500 kg/s, what is the terminal speed of the marble in m/s?
The specific heat of ethanol is 2.44 J/g·°C. How various kilojoules of energy are required to heat 50.0 g of ethanol from -20.0°C to 68.0°C.How far last car travel before momentarily coming to rest.
Determine the theoretical equation for the dependence of Period of the Physical Pendulum to location of the pivot point for a solid bar of length L. This will be T(x) - Period as a function of pivot point position. Mathematically determine minima ..
When kicked, the ball leaves the ground with a speed of 29.0 m/s at an angle of 51° to the horizontal. Explain by how much does the ball clear or fall short of the crossbar?
Moe, Larry, and Curly stand in a line with a spacing of = 1. Larry is 3.00 in front of a pair of stereo speakers 0.8 apart. The speakers produce a single-frequency tone, vibrating in phase with each other.
Relative to the ground, determine the angle of the velocity vector of the package just before impact.
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