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Metallic iron changes from bcc to fcc form at 910oC. At this temperature, the atomic radii of the iron atom in the two structures are 0.1258 nm and 0.1292 nm respectively. Calculate the volume change in percentage during this structural change. Also calculate the percentage change in density.
Communications satellites are used to bounce radio waves from the earth's surface to send messages around the curvature of the earth. In order to be available all the time, they must remain above the same point on the earth's surface and must move..
A model rocket launches with initial net upward accelration 1.5g (g is 9.8), This accelaration is maintained for 3 seconds. At what time does the rocket reach its maximum height
Find what force is exerted on the water in an MHD drive utilizing a 25 centimeter diameter tube, if 100 Amp current is passed across the tube perpendicular to a 1.75 T magnetic field
A bucket of water with a mass of 2kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 3 kg and is mounted horizontally on frictionless hearings. The bucket is released from rest.
a chain is held on a frictionless table with 1/5 of its length hanging over the edge. how much work is required to pull the hanging part back
It is possible for a muon to be captured by a proton to form a muonic atom. A muon is identical to an electron except for its mass. Suppose some particle of mass 105.7 MeV/c2 is similarly captured to form an atom.
Three resistors having resistances of 4 ohm, 6 ohm, and 10 ohm are connected in parallel. what is the current through the 10 ohm resistor
Sand moves without slipping at v = 5.9 m/s down a conveyer that is tilted at θ = 15o. The sand enters a pipe h = 3.4 m below the end of the conveyer belt, as shown in the figure below. What is the horizontal distance d between the conveyer belt an..
a block of mass m sliding on a frictionless table is attached to a horizontal string that passes through a tiny hole in
During a violent storm, a car is struck by a failing high-voltage wire that puts an excess charge of -850 mircoC on the metal car. a) how much of this charge is on the inner surface of the car? b) how much is on the outer surface of the car?
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the surface free-fall acceleration
As shown in the figure, the angle between two plane mirrors (M1 and M2) is 125o. If the incident ray strikes mirror M1 with an angle of incidence θ1i = 66o, determine the angle of reflection θ2r for mirror M2.
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