How long will it take for bucket to hit ground
The window washer accidentally drops the bucket from top of 64-foot building. Height (h) of bucket after t seconds is provided by given formula: h=-16t^2+64. How long will it take for bucket to hit ground?
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In the small rowboat, it took Alice six hours to go six miles upstream, but she was able to return to the starting point in only 45 minutes. Suppose the rowing speed was constant, find the speed of current?
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Discuss what fraction of the initial number of the C-11atoms in a sample will remain after 81 minutes? Carbon-11 is a radioactive isotope of carbon. Its half-life is 20.3 minutes.
A constant tangential force of 290 N exerted to its edge causes the wheel to encompass an angular acceleration of 1.094 rad/s2. (i) Determine the moment of inertia of the wheel?
Write down a balanced equation for the reduction of nitrophthalhydrazide to amino phthalhydrazide using the sodium hydrosulfite, which is oxidized to bi sulfite.
When the refracted ray emerges at the point P where the sphere intercepts the optical axis, determine the refractive index of the sphere?
What will be the absorbance of a 0.075 M solution if an aqueous solution of Co (NO3 )2 has a molar absorptive of 5.10 L/mol.cm at 505 nm.
Find out the number atoms per cell when the silver metal is found to have a cubic unit cell. The edge length of the unit cell is 408 pm and the density of silver is 10.5g/cm3.
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