Describe the ph of a solution prepared by mixing solution
Calculate the pH of a solution prepared by mixing 15.0 mL of 0.10 MNaOH and 30.0 mL of 0.10 M benzoic acid solution. (Benzoic acid ismonoprotic; its dissociation constant is 6.5x10-5.)
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A meteorologist for a TV station is using radar to determine the distance to a cloud. He notes that a time of 0.28ms elapses between the sending and the return of a radar pulse.
A 1.0m length of straight wire carries a current of 21 A in a uniform magnetic field of 60 mT whose direction is at an angle of 39 degrees from the direction of the current. Find the force on the wire.
A rocket-powered hockey puck has a thrust of 2.70 N and a total mass of 2.30 kg. It is released from rest on a frictionless table, 2.50 m from the edge of a 2.10 m drop. The front of the rocket is pointed directly toward the edge. How far does the
Design a pair of spur gears to be used as a part of the drive for a wood chipper (heavy shock driven machine) in a paper mill. An electric motor (uniform driver) transmits 3.0 horsepower.
Find the minimum sample size needed using a prior study that found 28% of the respondants saying they have high speed internet. Then find the minimal sample size for no preliminary estimates available.
Find the coefficient of kinetic friction µk between the backpack and the elevator floor. (Use any variable or symbol stated above along with the following as necessary: g.)
How many stength measurements will be obtained if the experiment includes one ingot for each mold type-orientation combination?
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is3.26 x 105 m/s.
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