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The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.18 V. The internal resistance of the battery is1.06 Ω. Find the voltage across thebattery terminals when there is a current of 1.92 A from the negative to the positive terminal.
an old professor uses a converging lens with focal length 28 cm to view a coin 16 cm in front of the lens.a where is
Betty Bodycheck (mB = 54.7 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 42.4 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Find both Betty's and Sally's Kinetic Energies
an object is launched with an initial velocity of 23.4 ms at an angle of 38.5 degrees above the horizontal. it lands on
a a proton of mass mp 1.67 x 10-27 kg and charge e 1.60 x 10-19 c is accelerated from rest through an electric
A football player with a mass of 89 kg and a speed of 2.1 m/s collides head-on with a player from the opposing team whose mass is 120 kg. Find the speed of the second player
A sample of ethyl alcohol (C2H5OH) has a density of 806 kg/m3 and a volume of 1.73 x 10-3 m3. find the number of molecules in the sample
A length of aluminum wire is connected to a precision 10.0 V power supply, and a current of 0.4258 A is precisely measured at 10.0 degrees celsius, What is the unknown temperature
Charge of -3.30 nC and a charge of -6.25 nC are separated by a distance of 40.0 cm. Find out the position at which a third charge of +7.60 nC can be placed so that the net electrostatic force on it is zero.
A person notices a mild shock if the current along a path through the thumb and index finger exceeds 80 μA. Find the maximum allowable potential difference without shock across the thumb and index finger for a wet-skin resistance of 1000 Ω.
A dentist uses a small mirror of radius 55 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 20 mm from the tooth, what is the magnification of image.
Two small plastic spheres each have a mass of 1.9g and a charge of -60.0nC, By what factor is the electric force on a sphere larger than its weight
find out the magnitude of the gravitational force exerted by one on the other.
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