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A spherical rock of mass 4.0 kg is suspended from a cord. A steady horizontal wind pushes the rock so that the cord makes a constant angle of 3.7o with the vertical. Find the horizontal force exerted by the wind.
A certain part of an aircraft engine has a volume of 1.2 ft3. Find the weight of the piece when it is made of copper
The steel machine component shown is formed by machining a hemisphere into the base of a truncated cone. Knowing that the density of steel is 7850 kg/m3, determine the mass moment of inertia of the component with respect to the y axis.
Jimmy and his cart (with a combined mass of 200 kg) are moving along with a velocity v1 = 20 m/s i. What is the velocity of the combined system of two carts plus occupants after the collision
A force F = 200i - 400j + FZ k N, is acting through point A(0,0,0) m.
X rays diffract from a crystal in which the spacing between atomic planes is .200nm. what is the angle of the first-order diffraction
light of wavelength 610nm is incident on a slit of width .20mm and in interference pattern is produced on a screen that is 1.5m from the slit. what is the width of the central bright fringe
An adiabatic, steady-flow heat exchanger condenses 11,000 kg/h of saturated steam at 300 kPa to a saturated liquid also at 300 kPa. Estimate the rate of energy destruction (in kW) during this process
A light-bulb of power 40 Watts is operating with a potential difference of 120 V across it. What is the current and resistance of the filament
"Remember that potential is simply potential energy per unit charge. Understanding this simple statement can help you to obtain a solution.
he primary coil of a transformer has N1 = 390 turns, and the secondary coil has N2 = 2 260 turns. what rms voltage is developed across the secondary coil
A constant force, = (1.27, -2.33, 3.93) N, acts on an object of mass 10.3 kg, What is the total work done by this force
The speed of an arrow fired from a compound bow is about 75 m/s. An archer sits astride his horse and launches an arrow into the air, what is the arrows range
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