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A rechargeable battery that is completey drained of electrical energy can be completed charged by applying 2 mA of current for 1.0 hour. If the battery acquires an emf of 2 V in the process of being charged, how much energy is the battery capable of storing?
1. a 2.0-m rope is lying on a table. you pick up one end and start raising it. how high above the table is the center
A beam of polarized light with an average intensity of 18.9 W/m2 is sent through a polarizer. find the rms value of the electric field of the transmitted beam
An object initially at rest moves a distance x when a force F is applied for time t. How far will the object move of a force of 2F is applied for the same time t
A 10g pellet shot from a gun is moving horizontally with aspeed of 100m/s when it hits and stops in a 400g woodblock. What is the maximum compression of the spring
two charges are placed between the plates of a parallel plate capacitor. one charge is q1 and the other is q2 5.20
A uniform disk with a mass of 775 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
4.30 g lead bullet traveling at 320 m/s is stopped by a large tree. what is the increase in temperature of the bullet
In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned on. When the heater is first turned on, it has not yet heated up, so it is operating at 20° C. What is the current through the wi..
Calculate the frequency and period of a pendulum of mass 10 kg and a) length .5 meters, b) length 5 meters.
an air-filled parallel-plate capacitor has a capacitance of 1.1 pf. the separation of the plates is doubled and wax is
A body of mass 200 g is acted upon by a force of 20 n. Find the acceleration of the body. If the body above is having a volume of 1000 cm3 estimate its density in kg/m2.
A 54kg ice skater moving at 6.4m/s glides to a stop. Assuming the ice is at 0deg C and that 50% of the heat generated byfriction is absorbed by the ice, how much ice melts
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