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A proton is initially at rest. After some time, a uniform electric field is turned on and the proton accelerates. The magnitude of the electric field is 1.22*105 N/C.
1. What is the speed of the proton after it has traveled 3.00 cm?
2. What is the speed of the proton after it has traveled 30.0 cm?
The leader of a bicycle race is traveling with a constant velocity of +11.8 m/s and is 9.20 m ahead of the second-place cyclist. How much time elapses before he catches the leader
sand is dumped onto a conveyor belt at the rate of 25 kg per second. what force is needed to keep the belt running at a
A human can be electrocuted if a current of 0.053 A passes near the heart. If a human is considered to be a resistor in a circuit with a resistance of 2039 ?,
When the lights of an automobile are switched on, an ammeter in series with them reads 9.90 A and a voltmeter connected across them reads 11.80 V. what is the emf of the battery
A winch is used to drag a 300 N crate up a ramp at a constant speed of 68.0 cm/s by means of a rope that pulls parallel to the surface of the ramp. If the rope were suddenly to snap, what would be the acceleration of the crate immediately after the..
The resistance of a bagel toaster is 14 ?. To prepare a bagel, the toaster is operated for one minute from a 120-V outlet. How much energy is delivered to the toaster?
A 0.359-kg mass is attached to a horizontal spring with k = 108 N/m. The mass slides across a frictionless surface Find the mechanical energy of the system
a determine the capacitance of two concentric spherical shells of radii r1 and r2. b show that when the radii are
a homogeneous one-speed bare reactor has a cylindrical configuration. determinea the radius and height of the reactor
A 55 kg person is skiing down a 30 degree slope. The coefficient of friction with the snow is .05. Calculate the final velocity of the skier
Discuss the relative merits of using the Biot-Savart law and Ampere's law to calculate the magnetic field around the wire. In this case, is it necessary to include the Maxwell correction to Ampere's law?
A 34.1 kg child rides a Ferris wheel whose diameter is 18.3 m. When the ride is turning at a constant rate, Find the normal force the seat exerts on the child at the top of the ride
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