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A large bell is hung from a wooden beam so it can swing back and forth with negligible friction. The center of mass of the bell is 0.70{\rm m} below the pivot, the bell has mass 34.0{\rm kg} , and the moment of inertia of the bell about an axis at the pivot is 20.0{\rm kg \cdot m^{2}} . The clapper is a small, 1.8 {\rm kg} mass attached to one end of a slender rod that has length L and negligible mass. The other end of the rod is attached to the inside of the bell so it can swing freely about the same axis as the bell.
What should be the length L of the clapper rod for the bell to ring silently-that is, for the period of oscillation for the bell to equal that for the clapper?
Three astronauts, propelled by jet backpacks, push and guide a 114 kg asteroid toward a processing dock, exerting the forces, with F1 = 32 N, F2 = 52 N, F3 = 39 N, θ1 = 30°, and θ3 = 60°. What is the (a) magnitude and (b) angle (measured relative ..
If 0.260kg of blood at a temperature of 37.0 ? C flows to the surface and loses 1400J of heat, what is the temperature of the blood
Two parallel plates, each of area 5.00 cm2, are separated by 2.00 mm with purified nonconducting water between them. calculate the charge stored on each plate
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
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If you have 0.326 m^3 of water at 25 degrees celsius and add 0.127 m^3 of water at 95 degrees celsius; what is the final temperature of the mixture
Four identical charges (+1.7 %u03BCC each) are brought from infinity, compute the electric potential energy of this group
A rope of mass M and length L0 lies on a frictionlesstable with a length 'l' initially hanging ove theedge. How fast is the rope moving
Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. What is the approximate temperature at this altitude
Light of wavelength 500 nm illuminates a 0.5 mm diameter hole. A screen is placed 6.0 m behind the slit. What is the width of the central maximum on the screen in mm
Explain the valve minor loss coefficient and how you would go about determining K.
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