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Household wiring made of aluminum wire with cross section area 3.1 x10^-6 m2 carries a current of 4.5 A. The bulk resistivity of aluminum is 2.82 x10^-8. What is the power loss over 5.2 m of wire?
What will the maximum kinetic energy of the photoelectrons ejected from magnesium (for which work function (line through 0) 0=3.7 eV) when irradiated by ultraviolet light of frequency 1.5 X 10^15 sec^-1
A stainless steel orthodontic wire is applied to a tooth, as shown in the figure above. The wire has an unstretched length of 2.9 cm and a diameter of 0.23 mm. The wire is stretched 0.1 mm. Young's modulus for stainless steel is 1.80E+11 Pa. What is ..
A jogger travels a route that has two parts. The first is a displacement of 2.00 km due south, and the second involves a displacement that points due east.
A 17g particle is moving to the left at 24m/s. How much net work must be done on the particle to cause it to move to the right at 40 m/s.
An airplane is cruising at an altitude of 10 km. The pressure outside the craft is 0.311 atm; within the passenger compartment, the pressure is 1.01 atm and the temperature is 20°C. A small leak occurs in one of the window seals in the passenger c..
An object is 12.0 cm in front of a convex mirror. When the convex mirror is replaced with a flat mirror, What is the focal length of the convex mirror
A skier starts down a 35? slope. After a vertical drop of 31m , the slope temporarily levels out and then drops at 18? an additional 39m vertically before leveling out again. What is the skier's speed on the lower level stretch
The net entropy changes when a 85g ice cube initially at 0 degrees C melts in a room. Part A What is the net entropy change, if room temperature T1 = 17 degrees C?
An object is located 8.00 cm from a converging lens that has a focal length of 10.0 cm. The height of the object is 0.67 cm. What is the height hi of the image
The plates of a parallel place capacitor have an area of 5 cm^2 each, and the capacitor has a capacitance of 3.5 pF. What is the separation of the plates and its final charge density
The light from a distant star takes 252 years to reach the earth. How far away is the star from the earth
A 1.82 kg solid sphere (radius = 0.140 m) is released from rest at the top of a ramp and allowed to roll without slipping. What is its rotational kinetic energy
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