Different identification badges are possible
Two non-repeating letters and two numbers will be used to form an identification badge. The letters are "A" through "K" and the last number MUST BE EVEN. How many different identification badges are possible?
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If the tile-iron has a square surface area 254mm to the side, how much energy has been removed from it during the time it has taken to lift the tile?
In a dice game, if a players rolls a 5 or a 7 she wins $10.00. if she rolls a 9, she wins 5.00 .. the cost to play the game is $2. What is the expection?
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The mass flowrate of the 134a is 3 kg/min. What compressor power is needed to drive this system? What is the COP? How quickly could this refrigerator freeze a typical tray of ice cubes?
A muon formed high in teh Earth's atmosphere travels at speed v= 0.990c for a distance of 4.60 km before it decays. (a) For what time interval does the muon live as measured in its reference frame? (b) How far does the Earth travle as measured in
Consider electrons accelerated to an energy of 20.0 GeV in the 3.00 km long Standford Linear Accelerator. (a) What is the (gamma) factor for the electrons? (b) What is the electron's speed? (c) How long does the accelerator appear to the electrons
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