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What is the minimum area (in square meters) of the top surface an ice slab 0.416 m thick floating on fresh water that will hold up a 1270 kg automobile? Take densities of ice and fresh water to be 917 kg/m3 and 998 kg/m3, respectively.
Calculate the minimum amout of work (in joules) required to freeze one liter of water originally at temperature T = 20 degrees celsius
In the circuit show in the figure, S1 has been closed for a long enough time so that the current reads a steady 3.5A. What is the maximum charge that the capacitor will receive
Apply those results to get how much slower a clock goes near the earth than one, which is higher up.
in 1971 astronaut alan shepard took a golf club to the moon where the acceleration due togravity is about g6. if he
A uniform shaft, fixed at one end & free at other, is twisted so that each cross - section rotates through an angle proportional to the distance from the fixed end. If the shaft is released from rest in this position, determine the s
two parallel metal plates have area a 255 cm2 and are separated by l 0.50cm. they have a potential difference of 0.25
Two spheres of mass m and a third sphere of mass M form an equilateral triangle, and a fourth sphere of mass mB is at center of the triangle.
a 2.6-kg shere of radius 35cm is intially rolling on a flat surface with a speed of v.40 ms. it comes to rest in 80m.
A venturi meter is used to measure the flow speed of a fluid in a pipe. The meter is connected between two sections of the pipe, What is the rate of water flow in cubic meters per second
a positive charge q1 is located to the left of a negative charge -q2. on a line passing through the two charges there
A hot air balloon plus cargo has a mass of 291 kg and a volume of 755 m3. The balloon is floating at a constant height of 6.25 m above the ground. The density of the outside air may be assumed to be 1.29 kg/m3. What is the density of the hot air in t..
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 14rpm in 9.8s, What force is required at the edge
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