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A Slider-crank mechanism has acrank to connecting link ratio of ¼. If the diameter of thejournal at the crank connecting - link bearing is 50 mm, determine the maximum rubbing velocity at the bearing when thecrank rotates at 3800 rev/min.
A pendulum is made by letting a 2.0-kg object swing at the end of a string that has length of 2.0 m. What is the speed of the object at the lowest point in its swing
How much force is the air exerting on the front cover of a book that is 23.9 cm long and 16.9 cm wide
Scott is rolling down a 30° slope on his skateboard. The total mass of Scott and the skateboard is 75 kg. What is Scott's acceleration
Each tire on a car has a radius of 0.330 m and is rotating with an angular speed of 15.5 revolutions/s. Find the linear speed v of the car
A guitar string with a linear density of 2.0 g/m is stretched between supports that are 60 cm apart. What is the frequency of the fifth harmonic of this string
Calculate the threshold wavelength, in nm, of a metal if that metal emits an electron with a kinetic energy of 6.32 × 10-19 J when illuminated with light that has a frequency of 1.97 × 1015 Hz.
The asteroid has a radius of about 9.70 km. Find the acceleration due to gravity at its surface
A lens for a 35-mm camera has a focal length given by f = 47 mm. What is the magnification of the image on the film
The damage caused by electric shock depends on the current flowing through the body; 1 mA can be felt and 5 mA is painful. What is the minimum voltage placed across the arms that would produce a current that could be felt by a person with dry skin
For a diverging lens (f = â€"16.0 cm), find the image distance for an object that is 16.0 cm from the lens. Determine the magnification of the lens
In a hydroelectric installation, a turbine delivers 1500 hp to a generator, what current does the generator deliver at a terminal potential difference of 2000 V
The alveoli have an average radius of 0.117 mm and are approximately spherical. If the pressure in the sacs is 5.00 105 Pa, how many air molecules are in an alveolus
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