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A 0.250-kilogram cup at 15 °C is filled with 0.100 kg of boiling coffee. The cup and the coffee come to thermal equilibrium at 75 °C. If no heat is lost, what is the specific heat of the cup material? [Hint: Consider the coffee to be essentially boiling water.]
Find the average magnitude of the induced emf if the change. The magnitude of the charge on a parallel plate capacitor is 4uC and the potential difference between the plates is 80V. What is the capacitance of this capacitor.
Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can while it reaches bottom.
A spherical balloon has the potential to reach a diameter of 35 cm, what would be the volume of this balloon when it reaches a pressure of 0.75P0 and a temperature of -15°C
Two pipes of equal length are each open at one end. Each has the fundamental frequency of 500 Hz at 325 K. In one pipe the air temperature is increased to 330 K. If the two pipes are sounded together, what beat frequency results.
An unstable particle with a mass equal to 3.34 ? 10-27 kg is initially at rest. Find the masses of the fragments
In 0.675 s, a 6.80-kg block is pulled through a distance of 4.10 m on a frictionless horizontal surface, starting from rest. By how much does the spring stretch
State the amplitude of the electric field vector in micro volts per meter to three significant figures.
Find an expression for work done by the gas
The system is released from rest, and the string moves without slipping over pulley. If the larger mass is traveling at a velocity of 2.25 m/s when it has dropped 1m, how much mechanical energy was lost due to friction in the pulley's axle.
A block of mass 5kg is attached to a spring of 3000N/m and compressed a distance of 0.3m. What are the period, frequency, and angular frequency
A birds travels at 1.4 m/s with a fish in its claws, at 15 degrees below the horizontal. If it drops the fish that takes 1.8 seconds to land on the ground
An air conditioner operating between 97F and 72F is rated at 3900 Btu/h cooling capacity. What horsepower is required of the air conditioner motor
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