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A 15.0-kg block of ice at 0.00°C falls into Lake Superior, which is a fresh water lake. The lake water is at 10.0°C, and the latent heat of fusion for ice is 3.34 × 105 J/kg.
Find the change in entropy of the block of ice due to themelting of the ice.
A capacitor is connected to a 17 kHz oscillator that produces an rms voltage of 9.0 V . The peak current is 65 mA. What is the value of the capacitance C?
suppose you have just discovered a new x-shy-ray binary which contains a b2 main sequence star orbiting an unseen
A coating of film n = 1.33 on glass slabs (n = 1.6) is 8.4Af-10Acˆ'5cm thick. If white light is incident normally, which visible wavelengths are missing in the reflected light?
A ball of mass 8.0 kg is suspended by two wires from a horizontal arm, which is attached to a vertical shaft, What are the tensions in wires 1 and 2
A hardworking ant must supply 0.0500 N to pull a small piece of fruit at constant velocity over a distance of 8.00 cm up a small hill to the entrance of the colony, calculate the work done by the ant by pulling the piece of fruit up the hill
A day on a distant planet observed orbiting a nearby star is 52.1 hours. Also, a year on the planet lasts 38.7 Earth days. Calculate the average angular speed of the planet
Sam whose mass is 74kg, takes off across level snow on his jet-powered skis. How far has Sam traveled when he finally coasts to a stop
The wheel of a car has a radius of 0.360 m. The engine of the car applies a torque of 327 N·m to this wheel, What is the magnitude of the static frictional force
Consider an isotope with an atomic number of 13 and a mass number of 54. Using the atomic masses given in the attached table, calculate the binding energy per nucleon for this isotope.
Carbon-14 has an activity of 0.25 Bq per gram of carbon for living organisms. The half-life of Carbon-14 is 5730 years. how old is the material
One generator uses a magnetic field of 0.185 T and has a coil area per turn of 0.0405 m2, What magnetic field should be used in the second generator
What focal length is necessary for a magnifying lens to produce a magnification of 5 for an object 20cm from the lens
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