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The uniform 33.0 mT magnetic field in the figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 5.50 x106m/s and at an angle of 30o above the xy-plane.
a. Find the radius r of the electron's spiral trajectory.
b. Find the pitch p of the electron's spiral trajectory.
A golfer, standing on a fairway, hits a shot to a green that is elevated 6.91 m above where she is standing. find the time that the ball is in the air before it hits the green
Explain 2 similarities and 2 differences between magnetic and electric fields’ lines. (Consider such things as where they terminate and originate,, how they are related to the direction and strength of the field, whether they are closed curves or lin..
Air @ 100F db, 65F wb, and sea-level pressure is humidified adiabatically with steam. The steam supply contains 20% moisture at 14.7 psia. Find the dry bulb temperature of the humidified air using the psychometric chart
a 4.0 g string 0.39 m long is under tension. the string vibrates at 600 hz in the third harmonic. the wavelength of the
An empty parallel plate capacitor is charged with the charge Q= 5uC (One plate of the capacitor carries the carge +Q and the other carries the -Q). Find the capacitance of the capacitor
Four identical charges (+1.5 mC each) are brought from infinity and fixed to a straight line. Each charge is 0.51 meter from the next. Find the electric potential energy of this group
A car drives straight off the edge of a cliff that is 64-m high. The police at the scene of the accident note that the point of impact is 110-m from the base of the cliff. How fast was the car travelling while it went over the cliff.
an electronic flash attachment for a camera produces a flash by using the energy stored in a 720 microf capacitor.
One stretch of I-90 near CSU was designed by someone who did not pay attention in Physics class. Obtain a formula for the maximum speed of the car
A "195-watt" light bulb uses an average power of 195 W when connected to an rms voltage of 120 V. What is the resistance of the light bulb
A block of wood weighs 50.0 Newton in air. A sinker is attached to the block, and the weight of the wood- sinker combination is 220 Newton when the sinker alone is immersed in water. Compute what is the density of the block
A 1.0kg object is released from rest 500km ( approx 300 miles) above the earth. What would the impact speed be if the earth were flat
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