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In 1.8 µs, an electronmoves 23 cm in the direction ofa 0.22 T magnetic field. Theelectron's velocity components perpendicular and parallel to the field are equal.
a) What is the length of its actual spiral trajectory?______cmb) How many orbits about the field direction does itcomplete?_______
A cube of metal has a mass of 0.569 kg and measures 3.09 cm on a side. Calculate the density and identify the metal
What is the volume of air at atmospheric pressure (100kPa) that must be pumped into a tyre that has a volume of 0.1 cubic meter?
A 40-g block of ice is cooled to ?72°C and is then added to 640 g of water in an 80-g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter.
An aluminum cylinder with radius 2.3cm and length 19cm is heated to 430 degrees C. Find the net power this cylinder radiates into a room
Find the force P that must be applied to a piston of area 11.10 cm2 to produce sufficient fluid pressure to support a car weighing 10,251 N by means of a column of fluid of cross sectional area 260 cm2, How far must the smaller piston move in order..
Which one of the following statements concerning simple harmonicmotion is FALSE?
A voltage V is applied to the primary coil of a step-up transformer with a 3:1 ratio of turns between its primary and secondary coils. A resistor R connected to the secondary dissipates a power P = 100 W. How much power is dissipated by the same r..
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate, What is the coefficient of kinetic friction between the ramp and the crate
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
At rush hour, the noise from a highway is 10^?4W/m^2 with 100 cars passing a given point a minute. How many cars are now driving on the highway
Two people carry a heavy electric motor by placing it on a light board 2.05m long. One person lifts at one end with a force of 405N , What is the weight of the motor
A model rocket is fired vertically from rest. It has a net acceleration of 17.0 m/s2. estimate how high does the rocket travel
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