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An 8.00kg package in a mail-sorting room slides 2.00m down achute that is inclined at 53.0degrees below the horizontal. Thecoefficient of kinetic friction between the package and the chute'ssurface is 0.400.
Calculate the work done on the package by friction.
Calculate the work done on the package by gravity.
Calculate the work done on the package by the normalforce.
What is the net work done on the package?
An ideal gas expands at a constant total pressure of 2.5 atm from 3.45 L to 6.70 L. calculate the total heat flow into the gas
the voltage across a capacitor is given by the formula vqc where q is usually called the charge on the capacitor. where
A 25 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 18 C in an insulated cup. What will the new water temperature be.
Draw the circuit with the following criteria; double acting cylinder used for broaching holes into metal plates. The cylinder is 24" long mounted vertically, What is the minimum horsepower required by the prime mover
A photon is emitted when a hydrogen atom undergoes a transition from the n = 10 state to the n = 4 state. Calculate values for the following. (a) the wavelength nm (b) the frequency Hz (c) the energy of the emitted photon eV
The Earth's distance from the sun varies from 1.465 x 108 kmto 1.518 x 108 kmduring the year. Take the Sun to be at rest. Determine the difference in the Earth's kinetic energy
A bat in a cave emits a sound pulse and receives an echo 0.22 second later. Assuming that the speed of sound is 339 m/s, how far did the sound (the longitudinal wave) travel during this time.
what is the electrostatic force that acts on this charge. What would be the least speed required for the rest of the trip to arrive in time for the interview.
A diver springs upward from a three-meter board. At the instant shecontacts the water her speed is 8.90m/s and her body makes an angleof 75.0o with respect to the surface of the water. How much time does she spend in the air
A sample containing sulfur (atomic mass 32 u), manganese (55 u), and an unknown element is placed in a mass spectrometer. What is the mass of the unknown element
suppose you have a heat engine operating between 230 C and 100.0 c. it achieves 20.0% of the maximum possible efficiency(carnot Efficiency). what energy input will enable the engine to perform 12.0 kJ of work?
The secondary voltage of an ignition transformer in a furnace is 14.5 kV. When the primary operates at an rms voltage of 100 V, What is the impedance in the secondary
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