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A battery having an emf of 10.99 V delivers 83 mA when connected to a 65.4 ? load. Find the internal resistance of the battery. Answer in units of ?.
A 220 block on a 52 long string swings in a circle on a horizontal, frictionless table at 95.What is the speed of the block? What is the speed of the block.
The hot-water needs of a household are met by a 75-L electric water heater whose heaters are rated at 1.6 KW. The hot water tank is initially full with cold water at 20C at a rate of .078kg/s. After a shower period of 12 min, the water temperature..
a solenoid is made of 283 turns of wire wrapped around a hollow cylinder of radius 1.30 cm and length 6.78 cm. what is
An energetic father stands at the summit of a conical hill as he spins his 22 child around on a 5.3 cart with a 2.2m-long rope. The sides of the hill are inclined at 25 degrees. He keeps the rope parallel to the ground, and friction is negligible.
A particle leaves the origin with an initial velocityof 2.37 m/s in the x direction, and moves with constantacceleration ax = -1.73 m/s2 and y = 3.20 m/s2. What is the particle's velocity at this time
a piece of copper wire has a resistance per unit length of 5.50 10-3 ?m. the wire is wound into a thin flat coil of
A football player kicks a 0.41 kilogram football initially at rest; and the ball flies through the air. find the magnitude of the average force on the football
A revolving car wheels have a radius of 15 meter and a mass of 3 x 104 kilogram. Find what tangential force is located on the wheel to give it such torque
Consider a wet roadway banked, where there is a coefficient of static friction of .30 between the tires and the roadway. what is the maximum speed the automobile can have
On a planet far, far away, an astronaut picks up a rock. The rock has a mass of 4.10 kg, What is its acceleration
A hoop with mass 2.2kg and diameter 1.2 m rolls to the right with no slipping at a steady 3.00 rad/second. Find the velocity vector of each as viewed by a person at rest on the ground.(i) the highest point of the hoop(ii) the lowest point of the hoop
A magnetic field is passing through a loop of wire whose area is 0.018 m2. What is the average emf induced in the loop
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