Floating on an iceberg in the ocean
A polar bear of mass 510 kg is floating on an iceberg in the ocean. As the ice melts, how small can the iceberg get before the bear gets wet feet? (Your answer should be the volume of the iceberg).
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The acceleration of gravity is 9.81 m/s2 . If the coefficient of kinetic friction between the box and ramp is 0.28, calculate the change in the box's kinetic energy.
A battery is constructed based on the oxidation of magnesium and the reduction of Cu2+. The initial concentrations of Mg2+ and Cu2+are 1.0*10^-4 M and 1.4 M, respectively, in 1.0 Lhalf-cells.
The cross-sectional area at the top of the sprue = 800 mm2, and its length = 175 mm. what area should be used at the base of sprue to avoid aspiration of the molten metal?
Two locomotives approach each other on parallel tracks. Each has a speed of v=85km/h with respect to the ground. If they are initially d=6.5 km apart, how long will it be before they reach each other?
The wind tunnel model is 1/10 the size of the actual column. What should the wind tunnel velocity be, in m/s? Is this an air velocity that will be esay to achieve?
When measured in a 1.00 cm cuvet, a 8.50 X 10-5M solution of species A exhibited absorbances of 0.129 and 0.764 at475 nm and 700 nm,respectively. A 4.65 X 10-5 M solutionof species B gave absorbances of 0.567 and 0.083 at 475 nm and 700nm, respect
Determine the pressure and temperature at each point in the cycle and the thermal efficiency. Give a summary table for the ratings for each component of the gas turbine system.
A 7.5nC charge is located 1.8m from a 4.2nC charge. Find the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive?
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The Deaf President Now protest happened at Gallaudet University when a hearing candidate was chosen to be the president instead of a Deaf candidate.
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