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Mean is 60 and standard deviation is 7. what percentage is 73 and below.
Physics
A person walks 2.8597x10^1 m East, then turns around and walks 8.7898x10^1 m West. The total time to walk this distance was 4.4004x10^2 s. What is the velocity of the walker, expressed to 3 significant figures? Note: Your answer is assumed to be reduced to the highest power po...
Physics
A person walks 2.8597x10^1 m East, then turns around and walks 8.7898x10^1 m West. The total time to walk this distance was 4.4004x10^2 s. What is the velocity of the walker, expressed to 3 significant figures? Note: Your answer is assumed to be reduced to the highest power po...
physics
A block of mass 39 kg lies on an inclined plane, as shown. The horizontal and vertical supports for the plane have lengths of 36 m and 15 m, respectively, and the coefficient of kinetic friction between the plane and the block is 0.3. The magnitude of the force ~F necessary to...
physics
i got the correct answer but i still get any of the concept >.< i feel dumb ahhh oh oh any good sites to learn physics really good
physics
A descending elevator of mass 670 kg is uniformly decelerated to rest over a distance of6 m by a cable in which the tension is 8683 N.The acceleration due to gravity is 9.8 m/s2.Calculate the speed vi of the elevator at the beginning of the 6 m descent. Answer in units of m/s.
Physics
A mining operation excavates 5.482x10^4 metric tonnes of ore each hour. In an 12 hour production shift, how much ore is excavated in kg, to 2 significant figures?
Physics
A refinery recieves 4.23434x10^4 m3/h of crude oil. After the distillation process roughly 4.76216x10^1 % of the crude is converted to miltitary aviation fuel (JP4). What is the amount of JP4 produced in a day in L, expressed to 4 significant figures?
Chemistry
ok so 8.0x10^4 = 80000 tons 80000 = 176 369 809.75 pound =80 000 000 001 grams m = vxd = 80000x1.03g/mg
Chemistry
consider a neutral atom with 69 protons and 80 neutrons what is the atomic number of this element
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