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A block lies on a frictionless inclined plane tilted at an angle of 35o to the horizontal.
(a) Draw the free-body diagram for the block.
(b) Determine the block's acceleration as it slides down the inclined plane. Is your answer reasonable? Why or why not?
(c) If the block started from rest 8.5 m up the incline from its base, determine the block's speed when it reaches the bottom of the incline.
How much force is needed to hold a 7.0 cm diameter hose delivering 440 L/min through a 0.73cm diameter nozzle.
Consider a Hydrogen atom with the electron in the n = 6 shell. The magnitude of the ground state energy of the Hydrogen atom is 13.6 eV. How many electron orbits are in this main shell
If a 200 N force F1 is applied to the piston with the 4 cm diameter, Calculate the magnitude of the force F2 that can be resisted by the piston with the 10 cm diameter? Ignore the weights of the pistons.
A constant-pressure insulated piston-cylinder device contains 1.7 kg of saturated liquid-vapor mixture of water at 150 kPa with an initial quality of 0.2. Calculate the change in exergy of the contents in kJ
An electric motor rotating a workshop grinding wheel at a rate of 1.10 102 rev/min is switched off, How long does it take for the grinding wheel to stop
A package of mass 7 kg sits at the equator of an airless asteroid of mass 7.0 x 1020 kg and radius 8.9 x 105 m. How much must we compress the spring
A horizontal wire of length 3.0 m carries a curruent of 6 A and isoriented so that the direction is 50 degrees S of W. The earthsmagnetic field is due north at this point and has a strengthof 0.14 * 10^-4 T. What is the size of the force on the wire?
a crane on a dock lifts an 1107kg container 28m, swings it out over the deck of a freighter, and lowers the container into the hold of the freighter, how much work is done by the crane on the container
A tube is open only at one end. A certain harmonic produced by the tube has a frequency of 470 Hz. What is the length of the tube
A small piece of dust of mass m = 1.4 µg travels during an electric air cleaner in which the electric field is 483 N/C. The electric force on the dust particle is equal to the weight of the particle. What is the charge on the dust particle?
a certain rain cloud at an altitude of 1.75 km contains 3.20 x 107 kg of water vapor. how long would it take a 2.70-kw
A space traveller whose mass is 104kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no near planetary objects.
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