Determine the power needed for the skier
A skier of 58kg is being pulled up 12 degrees frictionless slope. Determine the power needed for the skier to cover the whole 1.20 km slope in 4.5 min?
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Compute the probability that the sample variance from the second sample exceeds the one from the first. Hint: Relate it to the chi-squre distribution and then the F-distribution.
Where t is in days, 1 is less than or equal to t less than or equal to 365, and t =1 corresponds to January 1. For what range of values of t is average daily temperature above 70 degrees F?
A large university wants to estimate what proportion of their full time math students are male. If a random sample of 100 math students are taken and 30 of the students are male, what would the confidence interval be if a 80% confidence level is d
A horizontal spring having K=75N/m consists of one end joined to a wall and the other end free. The wad of putty of 85 g is thrown horizontally at 3.4 m/s directly toward the free end. Determine the maximum spring compression?
A manufacturer of flashlight batteries took a sample of 13 batteries from a day's production and used them continuously until they failed to work. The life as measured by the number of hours until failure was:
A spring consists of a force constant of k = 1.0*10^4 N/m. (i) Determine how far should it be stretched for its potential energy to be 80 J?
A very long, thin rod carries electric charge having linear density 35.0 nC/m. It lies all along the x-axis and moves in the x direction at a speed of 15.0 Mm/s. (i) Determine the electric field the rod makes at the point (x = 0, y = 20.0 cm, z = 0
Use law of sines to solve ( if possible) traingle. if two solutions exist, determine both. A= 76 degrees, a=34, b=21. Compute area of triangle having the indicated angle and sides. B=130 degrees, a=62, c=20.
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