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A square threaded screw of mean diameter 25 mm and pitch of thread 6 mm is utilized to lift a weight of 10 kN by a horizontal force applied at the circumference of the screw. Find the magnitude of the force if the coefficient of friction between the nut and screw is 0.02.
A horizontal light ray strikes an equilateral prism (all3 angles are 60 degrees) at the mid point of the prism's leftside. If the index of refraction of the prism material is 1.7,which face (left, right or bottom) of the prism will the rayemerge f..
Air at 13 psia and 20°F enters an adiabatic diffuser steadily with a velocity of 600 ft/s and leaves with a low velocity at a pressure of 14.5 psia. The exit area of the diffuser is 5 times the inlet area. Determine
Describe what would be observed if a double slit were illuminated by light of the two yellow mercury lines of wavelengths 577 and 579 nm respectively, calculate the visibility of the fringer near m=50
question a 182 mh inductor whose windings have a resistance of 8.20 omega is connected across a 9 v battery with an
An equilateral triangle has sides of lengthL. Charges of +Q,-2Q,and +3Q are placed at the vertices. Find the electric field midway between the two positive charges
An Airbus A310 is initially moving down the runway at 7.0 m/s preparing for takeoff. The pilot pulls on the throttle so that the engines give the plane a constant acceleration of 1.9m/s2. The plane then travels a distance of 1600 m down the runway be..
As you stand by a railroad track a train passes with its whistle blowing. As it passes, you hear a frequency shift equal to 24% of the frequency of the whistle. How fast is the train moving. Express your answer in km/hr. (Speed of sound is 331..
A balloon filled with helium has a weight of 2.15 N and a volume of 0.495 m3. It is secured to the ground by means of two strings (both strings are located 50 degrees above the horizontal). Find the tension in the strings.
A Viewing window in an aquarium is 62 inches wide and 56 inches high. If the average pressure inside the water tank is 16psi. What is the outward force on the window.
An electric dipole consists of a +2.25 nC charge and a -2.25 nC charge separated by a distance of 1.50 x 10-6 m. The negative charge is located above (y-direction) the positive charge. What is the electric dipole moment?
For a travelling wave in a string under trnsion, describe the kinds of energy present as the waves moves during the string. Also explain the variations in the energy density present in the travelling wave for a one wavelength amount of the travelling..
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.18 m2 and whose thickness is 7 mm. what is the percentage lost by the window
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