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A toaster rated at 1055 W operates on a120 V household circuit and a 4.00 m length of Nichrome wire as its heating element. The operating temperature of this element is304°C. What is the cross-sectional area of the wire?
A suction cup works by virtue of a vacuum that is created within the cup. When the cup is pressed against a flat surface, most of the air is forced out, what is the pressure inside the suction cup
A force of 25.33 N is applied tangentially to a wheel of radius 0.340 m and gives rise to an angular acceleration of 1.20 rad/s^2
Suppose a 65 kg person stands at the edge of a 6.5 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1850 kg m2. Calculate the angular velocity of the turntable
A well-insulated container of negligible heat capacity contains 150g of ice at 0 degrees. If 20g of steam is injected into the container, what is the final equilibrium temperature of the system
Nine electrons are injected into a one-dimensional energy well with a width of 2 nm. (a) What will be the quantum numbers and energies of each of the nine electrons? (b) What is the lowest-energy photon that can now be absorbed by electrons in this e..
A jet airplane is in level flight. The mass of the airplane is m = 8950 kg. What is the magnitude of the lift force acting on the plane
A constant-volume gas thermometer reads 50.0 torr at the triple point of water. What ideal-gas temperature corresponds to a pressure of 678 torr
Two stationary point charges of 4 nC and 2 nC are separated by a distance of 60 {rm cm}. An electron is released from rest at a point midway between the charges and moves along the line connecting them. What is the electric potential energy of the..
A large box of mass 50kg lies on a frictionless inclined plane at an angle of 30º. What is the Normal Force acting on the box
questionwhile the movie back to the future ii came out everyone wanted a hover-board. you decide to use your
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure in pascals
A ball is thrown horizontally from the top of a building 19.0 m hight and lands 64.7 m from of the building, With what initial speed was the ball thrown
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