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The heater element of a toaster is 5.40m length of nichrome wire, whos diameter is 0.480mm. The resistivity of nichrome at the operating temperature of the toaster is 1.3*10^-6 Ohm*m. the toaster is operated at a voltage of 120V. What is the power drawn by the toaster?
A rocket is fired straight upp from the ground with a 2.25 m/s acceleration. what is the speed of the rocked when the engines stop
A 560 turn solenoid, 25 cm long, has a diameter of 3.0 cm. A short 18 turn coil is wound tightly around the center of the solenoid. what will be the induced emf magnitude in the short coil during this time
a physics instrustor shakes a 2.0 m long alumium rod to create the pattern, find is this a transverse wave or a longtudinal wave
Green light at 532 nm lights a diffraction grating with 800 lines per cm. Diffraction pattern is on screen 7.5m away. Calculate distance between the diffraction peaks on the screen
A student sits on a freely rotating stool holding two weights, each of mass 2.90 kg. When his arms are extended horizontally, Find the new angular speed of the student
suppose the apparatus as used in this lab: A cube of mass M = 500 g and side length 30 mm is free to spin on an axis through the center of one face. A massless pulley on this axis has a diameter of 2r = 10 mm. An object with m = 50 g is hung from ..
State the direction as an angle with respect to the +x axis.
A uniform soda can of mass 0.140 kg is 12.00 cm tall and filled with 1.31 kg of soda. After that small holes are drilled in the top and bottom (with negligible loss of metal) to drain the soda.
An ice cube is dropped in a glass of oil (density= 900 kg/m^3). What fraction of the ice floats above the oil
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of81.0m/sat ground level. What is its velocity just before it hits the ground
You pull a 12 kg sled across the floor with a strap that is at an angle of 31° above the horizontal with a force 76 N. Determine the magnitude of the acceleration of the sled, given that the coefficient of kinetic friction between the suitcase an..
A spaceship is moving around the Earth in a 500- x 1000km orbit. At apogee, a retrorocket is fired in a direction exactly opposite to the spaceship's velocity vector. How much time elapsed between retrofire and impact
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