How far is foot of ladder from base of building
60 ft. ladder is leaning against the building and ladder makes the angle of 65 with ground. How far is foot of ladder from base of building and how high up th building does it reach?
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A block of 1.2 kg is hung from a vertical spring, causing the spring to stretch by 2.4 cm. Determine by how much farther will the spring stretch when a 0.60 kg block is added to the 1.2 kg block?
The firm desires to establish 90% confidence interval for this magazine's write-off proportion that is accurate to 0.02 (margin of error=.02)
The sector of the circle has the central angle which has the measure of 95 degrees. If radius of sector is 16 ft., find length of arc subtended and measure of the area of this sector?
Determine the speed which must a vehicle maintain to drive on the vertical circular wall of radius 20 m when the coefficient of static friction between the vehicle tires and the wall is 0.4?
Two children, Jason and Betsy, ride on the similar merry-go-round. Jason is at distance R from the axis of rotation; Betsy is at distance 2R from the axis. (i) Evaluate the ratio of Jason's angular speed to the Betsy's angular speed?
Find the test statistic and critical value. What would the Ho and Ha be? Would you reject or fail to reject the null hypothesis?
To estimate elevation of the mountain top the surveyor measures angle of elevation from the point 10000ft away and this angle measured 32 degrees. Find elevation of mountain?
Determine how far apart should two 1-coloumb objects be positioned so that the coulomb force is equivalent to the earth's gravitational force on a 100 kg mass?
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