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If two adjacent natural frequencies of an organ pipe are determined to be 475 Hz and 575HZ. Calculate the fundamental frequency and the length of the pipe.
The "tube length" of a microscope is defined to be the difference between the (objective) image distance and objective focal length: L=di%u2212fobjective. How far from the object should this lens be placed
A large spool in an electrician's workshop has 80 m of insulation-coated wire coiled around it. What is the length of wire remaining on the spool
Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.2 mm, What is the resistance ratio RA/RB , measured between their ends
a ball rolls down a 100m.the hill is inclined at 60 degrees. if the ball has a rotational inertia of 10kg-m^2 and starts from rest, what is the final rotational speed of the ball?(you must use the conservation of energy)
A camera's zoom lens covers the focal-length range 38mm -138mm . You point the camera at a distant object and photograph it first at 38mm and then with the camera zoomed out to 138mm . Compare the sizes of its images on the two photos.
A 480 W heating coil designed to operate from 100 V is made of Iron wire 0.548 mm in diameter, calculate the length of wire used
The current in the circuit if the speed v is 0.75 m/s , determine which end of the rod is positive.
a thin double convex lens is to focus the image of an object onto a screen so that the image is life sized. how far is the screen from the object
How much work is done by a pump to slowly compress, isothermally, 4.80L of nitrogen at 0 degree celcius and 1.60 atm to 2.40L at 0 degree celcius
A block of mass 4.6 kg slides 15 m from rest down an inclined plane making an angle of 28 o with the horizontal. what is the retarding force due to friction
Just after opening a parachute of negligible mass, a parachutist of mass 82.5 kg experiences an instantaneous upward acceleration of 1.15 m/s2. Find the force of the air on the parachute
A 24-V battery is connected in series with a resistor and an inductor, with R = 3.8 ? and L = 7.2 H, respectively. Find the energy stored in the inductor when the current reaches its maximum value
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