How many milligrams of naf should be added
A city's water supply is fluoridated by adding NaF.The desired concentration of F- is 1.6ppm.How many milligrams of Naf should be added per gallon of treated water if the water supply is 0.2 ppm in F-?
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A motorist is traveling at 12 m/s when he sees a deer in the road 43 m ahead. If the maximum negative acceleration of the vehicle is -7 m/s/s, what is the maximum reaction time (delta)t of the motorist that will allow him to avoid hitting the dee
Suppose you have a Newtonian fluid flowing in a circular tube with a certain volume flow rate, Q. There is a branch in the tube where it divides into two circular tubes. From the branch point in the tube to the outlet ends of the two smaller t
What must the charge (sign and magnitude) of a 1.43-g particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 630?
Two Polaroids are aligned so that the light passing through them is a maximum. At what angle should one of them be placed so that the intensity is subsequently reduced by 50 percent?
Sam, whose mass is 61.0 kg, takes off down a 49.0 m high, 9.00^circ slope on his jet-powered skis. The skis have a thrust of 180 N. Sam's speed at the bottom is 45.0 {rm m/s}. What is the coefficient of kinetic friction of his skis on snow?
Snow begins to fall vertically and fills the car at a rate of 3.50 kg per minute. Ignoring friction with the tracks, what is the speed of the car after 86.4 minutes?"
Two identical positive charges separated by 12.5 cm exert a repulsive force of 1.24 N on each other what is the magnitude of the charges?
A car of mass M = 1200 kg traveling at 55.0 km/hour enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tires. What is the radius r of the turn if theta = 20.0 (assum
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Most primates have good color vision. According to the video, color vision is particularly important to howler monkeys (genus: Alouatta) because
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Discuss how agonal changes can affect the postmortem condition of the body. State the order of decomposition of body compounds
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