Pressing a book against a vertical wall
A girl is pressing a book against a vertical wall. If the coefficient of friction between the book and the wall is .35, how hard would she have to push in order to allow the book to slide down at constant speed?
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An automobile club plans to race a 750 kg car at the local racetrack. The car needs to be able to travel around several 175 m radius curves at 91 km/h. What should the banking angle of the curves be so that the force of the pavement on the tires o
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What is the solubility product constant? Given Ksp = 1.1 x 10^-3 for BaF2(s), calculate the molarity of Ba+2 in a saturate solution of BaF2 (at equilibrium). Calculate the molarity of Ba+2 when BaF2 is dissolved in a solution of 0.250 M Naf.
What experiences did you have as a student that you now understand were rooted in historical education philosophies?
How would you handle the response, and how would you determine the proper type of PPE to be used in this incident? What type of PPE would you recommend?
What is the concentration (molarity) of chloride ions after combining 49.7 mL of 0.383 M barium chloride with 14.1 mL of 0.590 M cobalt(II) chloride?
A car is driven 100 km west and then 90 km southwest. What is the displacement of the car from the origin? Assume the blocks are equal length.
Calculate the final temperature of 33 of ethanol initially at 20 upon absorption of 649 of heat. (density of ethanol =0.789 )
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