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The Gravitron is a carnival ride that spins up to 21 rpm (revolutions per minute) that appears to pin its passengers against padded seats at it rotates at high speed. If the Gravitron is 6.2 meters in radius, estimate the coefficient of friction of the padded seats. (please explain)
A parallel-plate capacitor has plates of area3.56×10−4 m^2. What plate separation is required if the capacitance is to be1590pF? Assume space between the plates is filled with air.
A group of explorers in Antarctica can obtain water only by melting ice. They wish to make 4 cups of coffee, determine the amount of heat required and the amount of power required
q. suppose that you hear a clap of thunder 15.90 s after seeing the associated lightning stroke. the speed of sound
The total translational kinetic energy of the molecules of a sample of gas at 435 K is 1.99 × 104 J. How many moles does the sample comprise? Find the average translational kinetic energy of a single molecule.
a car traveling on a downhill grade has a grade resistance of -145lb. what is the weight of the car? which has the
A boy stands at a point 260 meter in front of the face of a sheer cliff. If the boy shouts, find how much time will elapse before an echo is heard
A helium balloon ride lifts up passengers in a basket. Assume the density of air is 1.28 kg/m3, find the volume of helium in the balloon when fully inflated
A jet aicraft is traveling at 22m/s in horizontal flight.The engine takes in air at a rate of 72.0 kg/s and burns fuel at a rate of 2.70 kg/s. Find the thrust of the jet engine
Three capacitors of 2.00 nF, 5.00 nF and 7.00 nF are connected in series to a source with a potential difference of 9.00 V. What is the energy stored in each capacitor
A proton is located at the origin, and a second proton is locatedon the x-axis at x = 5.12 fm (1 fm = 10-15 m). Calculate the electric potential energyassociated with this configuration.
he diffraction pattern is viewed on a screen 55.5 cm from the slit. The distance on the screen between the third order minimum and the central maximum is 1.91 cm. What is the width of the slit
The distance between two successive maxima of a transverse wave is 1.20m. Eight crests, or maxima, pass a given point along the direction of travel every 12.0s. calculate the wave speed.
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