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The lowest frequency of the thump of a bass rum is heard at a frequency of 45 Hz. If the tension of the membranes covering the drum heads is increased by a factor of 4, what would be the new lowest frequency?
Jack and Jill are on two different floors of their high rise office building and looking out of their respective windows. What is the height between the two window ledges
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
an ideal gas expands isothermally,perfoming 5.57x10^3 j of work in the process. calculate the heat absorbed during this expansion
Two equally charged insulating balls each weigh 0.14 g and hang from a common point by identical threads 30 cm long. The balls repel each other so that the separation between their centers is 6.4 cm. What is the magnitude of the charge on each bal..
A potter's wheel, with a moment of inertia 36 kg*m2, is spinning freely at 40 rpm. The potter drops a lump of clay onto the wheel, what is the mass of the clay
A Cepheid variable has been found to have a period of 22 days, from this its luminosity is determined to be 2.8 x 1029 W, Use this information to calculate the distance to the Cepheid
At what angle must the projectile be fired to hit a target positoned at a range 10km away if the initial speed of the projectile is 500ms
A daredevil is shot out of cannon at 41.1o to the horizontal with an initial speed of 26.1 m/s. Find at what height above cannon should the net be placed
A snowboarder of mass 82.0 kg (including the snowboard's mass) slides straight down a "double black diamond" hill. The hill is 45 metres in length and inclined at 40° below the horizontal. Determine the work done by the normal force
A top spins at 30 rev/s about an axis that makes an angle of 30 deg with the vertical. what is the precession rate
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
To pass a slow moving truck, you want your 1300 kilogram car to accelerate from 30.0 mph to 40 mph in 3 sec. Find the minimum power required for this pass
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