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The total cross-sectional area of the load-bearing calcifiedportion of the two forearm bones (radius and ulna) is approximately2.4 cm2. During a car crash,the forearm is slammed against the dashboard. The arm comes to restfrom an initial speed of 80 km/h in 5.8ms. If the arm has an effective mass of 3.0 kg, what is the compressional stress that the arm withstands during the crash?
the speed of an automobile traveling due to east is uniformaly reduced from 75.0km to 45.7kmh in a distance of 88.5m.a
A sledge loaded with bricks has a total mass of 17.1kg and its is pulled at constant speed by a rope inclined at 20.0 degrees above the horizontal. the sledge moves a distance of 20.8 m on a horizontal surface. The coefficient of kinetic friction ..
When a 14.4-V car battery delivers a current of 60.0 A, the power consumed on its internal resistance is 36.0 W, what is the internal resistance of the battery
Oil with index of refracton n=1.25 floats on water with index n=1.33. For normal incidence, what maximum film thickness will reflect red light of wavelength 650nm most strongly
bob has just finished climbing a sheer cliff above a beach and wants to figure out how high he climbed. all he has to
a 50.0 kg student climbs a 5.00 m long rope and stops at the top, how much work does she do
A cube of ice is taken from the freezer at -8.4^circ C and positioned in a 114 g aluminium calorimeter filled with 322g of water at room temperature of 20.0 C. The final situation is observed to be all water at 15.0C.
If the Volume of the vessel is 20 then we know that the maximum amount of displaced fluid will be [v] units and when you place the vessel in the water there will be [u] units of fluid displaced, which will flow into the graduated cylinder.
Calculate the magnetic moments that are possible for the n=3 level of Hydrogen, making use of the quantization of angular momentum. You may neglect the existence of spin. Compare this with the Bohr prediction for n=3.
q1. a fan at a rock concert is 30 m from the stage where sound intensity level is 110 db. her eardrums have the
A capacitor has a capacitance of 250 nF and a voltage is placed across it which grows as a function of time as: V(t) = 240 mV/s3 × t3
Two small plastic spheres each have a mass of 1.9g and a charge of -52.0 nC. They are placed 3.0cm apart (center to center). A) What is the magnitude of the electric force on each sphere
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