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Question: Two small plastic spheres are given positive electrical charges. When they are a distance of 14.8cm apart, the repulsive force between them has a magnitude of 0.235 N.
What is the charge on each sphere if the two charges are equal?
What is the charge on first sphere if it has four times the charge of the other?
What is the charge on the second sphere?
Two soccer players start from rest, 43 m apart. They run directly toward each other,both players accelerating. How much time passes before they collide
An ideal heat engine with a Carnot efficiency of 38.9 % takes in heat from a high-temperature reservoir at 155oC. What is the Celsius temperature of the low-temperature reservoir?
A closed system is observed to have 75 objects in it. Initially, the total energy of the system is 6183 Joule. After 8.6 hour has passed, compute how much total energy will the system contain
how large is the image of the sun on film used in a camera with a 27 mm focal-length lens? the sun has diameter 1.4 x
A sophomore with nothing better to do adds heat to 0.350 kg of ice at 0.00°C until it is all melted. What is the change in entropy of the water
The primary coil of a transformer has 232 turns; the secondary coil has 1900 turns. An alternating current is sent through the primary coil. What is the emf amplitude in the secondary
q1.the density of the tightly compressed sugar cube is about 1.4 1.4gml. if a sugar cube weighs very close to 5 grams
A car travels up a hill at a constant speed of 32 km/h and returns down the hill at a constant speed of 73 km/h. compute the average speed for the round trip.
Suppose a certain jet plane creates an intensity level of 123 dB at a distance of 5.90 m. What intensity level does it create on the ground directly underneath it when flying at an altitude of 2.01 km
Suppose a 73.0kg skier with twice the starting speed coasted the same distance before stopping. Find the coefficient of kinetic friction between that skier's skis and the snow.
A solid uniform 3.33 disk has a string of negligible mass wrapped around its rim, with one end of the string tied to the ceiling. How much rotational kinetic energy does the disk have
point charges of -6 microc 3.0 microc and 6 microc are located along the x axis at x -1.0 cm x 0 and x 1.0 cm
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