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1. Describe the difference between an ideal battery and a real battery. Describe what happens as a result of drawing too much current from a real battery. Be sure to use the terms internal resistance and terminal voltage in your response. 2. Describe the charging and discharging of a capacitor in terms of the potential difference across the capacitor and the energy stored in the capacitor. What are the limitations of capacitors as electrical energy storage devices? Be sure to use the terms time constant and exponential in your response. 3.Discuss an alternative technology for the storage or delivery of electrical energy that you have run across in researching your response to this discussion question.
Singly charged uranium-238 ions are accelerated through a potential difference of 2.26 kV and enter a uniform magnetic field of magnitude 1.98 T directed perpendicular to their velocities. Determine the radius of their circular path
A figure skater glides along a circular path of radius 2.51 m. If she coasts around one half of the circle, find the magnitude of the displacement vector.
A dissecting microscope is designed to have a large distance between the object and the objective lens. find the distance between the object and the objective lens
A uniform 1.4 kilogram rod that is 0.75 meter long is suspended at rest from the ceiling by two springs, one at each end of the rod. Compute the angle that the rod creates with the horizontal
A block is projected up a frictionless inclined plane with initial speed v0 = 3.57 m/s. The angle of incline is 32.8°. How long does it take to get there
Calculate the kinetic energies of two uniform solid cylinders, each rotating about its central axis. They have the same mass, 2.75 kg
a police camera is designed to read the plate number on a speeding car. what is the diameter of the camara's aperture
even as Jo moves off in the opposite direction at a speed of 1.27m/s. assuming that friction is negligible, find out Al's mass.
The four tires of an automobile are inflated to a gauge pressure of 2.1 105 Pa. Determine the weight of the automobile
A circular armature coil is used in a motor with a uniform magnetic field of 4.10 T. The coil has a diameter 60 cm, a resistance of 50 ?, how much current is flowing throught the motor
A wheel rotating about a fixed axis with a constant angular acceleration of 2.0 rad/s2 turn through 2.4 revolutions during a 2.0-second time interval. Find the angular velocity at the end of this time interval
Part A: A point charge Q creates an electric potential of +130V at a distance of 25cm. What is Q? Express your answer to two important figures and include the appropriate units.
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