Prepares for an exam by studying
A student prepares for an exam by studying a list of 10 problems. She can solve 7 of them. For the exam, the instructor selects 6 questions at random from the list of 10. What is the probability that the student can solve all 6 problems on the exam?
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The toroid has 900 turns of large diameter wire, each of which carries a current of 14.0 kA. Find the magnitude of the magnetic field inside the toroid along (a) the inner radius and (b) the outer radius.
A magnifying glass is a single convex lens with a focal point length of f= + 14 cm. What is the angular magnification when this lens forms a (virtual) image at - 8
As a system increases in volume, it absorbs 52.5 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.500 atm. The final volume of the system is 58.0 L.
Jupiter's moon Io is has an orbital radius of 421,000 km, around the planet Jupiter (MJ = 1.9 x 10^27 kg). Io's radius is 1821 km and its mass is 8.93 x 10^22 kg. Calculate the tensional force inside Io, as a result of Jupiter's gravitation.
A student prepares for an exam by studying a list of 10 problems. She can solve 7 of them. For the exam, the instructor selects 6 questions at random from the list of 10. What is the probability that the student can solve all 6 problems on the exa
When 96.4 g of god at some temperature is added to 25.0 g of water at 23.4 C in a calorimeter, the final temperature of the resulting mixture is 26.8 C.
The sludge has to be dried before it can be composted or otherwise handled.If sludge containing 70% water and 30% solids is passed through a drier and the resulting product contains 25 % water, how much water is evaporated per ton of sludge sent t
Calculate the change in freezing point of water if 0.0053g of a protein with molecular weight 10083g/mol is dissolved in 100mL of water.
Determine the current required to maintain the wire surface at 115 degree C. Also determine the rate of heat transferred from the wire.
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