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In an insulated container, 300g of ice at aninitial temperature of -5degrees C is added to 550g of water at aninitial temperature of 20degrees C. Find:
a) the final temperature of the system
b) the amount of ice remaining (if any)
A charged isolated metal sphere of diameter 13 cm has a potential of 9800 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere.
A satellite is placed in orbit 8.40 x 10^5 m above the surface of the planet Jupiter. Find the orbital speed of the satellite
A certain superconducting magnet in the form of a solenoid of length 0.350 m can generate a magnetic field of 8.50 T in its core when its coils carry a current of 65 A. Find the number of turns in the solenoid.
Two equal positive charges of magnitude q1 = q2 = 5.5 nC are on the y axis at y1 = +3 cm and y2 = -3 cm. What is the force exerted on a third charge q0 = 4 nC when it is placed on the x axis at x = 2 cm
A 200-kg roller coaster car travels over the top of a 40-m high hill (Hill A) traveling at 10 m/s. find the speed of the car at the top of the second hill
A 20.0kg crate slides down a 29° incline at constant speed. What is the force of friction between the crate and incline
Calculate the deBroglie wavelength of electrons that have been accelerated by 50,000 Volts (Remember the relation between energy and momentum). The answer is 5.486*10^-12 meters, but I'm not sure how to get it.
Atoms can be cooled using multiple laser beams. In such an experiment, the temperature of sodium atoms can be cooled to 0.1 mK. What is the rms speed of the atoms at this temperature
A physics book is thrown horizontally 20m/s out of a 5m high window. How far horizontally did the student throw the book
a 50 kg sprinter, starting from rest, runs 50 m in 7.0 s at a constant acceleration. what is the sprinter's power output during the final 2.0 s
An R = 49.8 ? resistor is connected in series with a C = 12.1 ?F capacitor and a 105 Hz, 110 V source. Calculate the current in the circuit
A long pipe of outer radius 3.60 cm and inner radius 3.06 cm carries a uniform charge density of 3.22 mC/m3. calculate the electric field r = 7.56 cm from the centerline of the pipe
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