Determine the tension in each wire
A window cleaner of 80 kg sits 1.8 meters from the end of a 5 meter long scaffold which is supported at either end by a vertical wire. Suppose the scaffold is a uniform beam having a mass of 40 kg and determine the tension in each wire.
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Compute the estimate for the standard error of difference between two independent means for s1^2 = 17, s2^2 = 10, n1 = 30, and n2 = 26. (Give your answer correct to two decimal places.)
After a projectile is launched, till just before it lands, certain features of its motion stay constant, while others change. In the list beneath choose the parameters that stay constant for a projectile, supposing the drag force can be avoided. Q
The two spacecraft fly away from the Earth, traveling in precisely opposite directions. As evaluated by an observer on Earth, spacecraft A travels at a speed of 0.392 c and spacecraft B travels at a speed of around 0.870c. Find out the speed of sp
Company B charges $24.00 plus $0.19 a mile. Determine number of miles m (to nearest mile) per day for which it is cheaper to rent from Company A.
Ben claims that average price of a car wash in West Newton is more than $6.00. A sample of five car washes has an average price of $6.60 and a standard deviation of $1.10. At alpha = 0.05, test Ben's claim. The p value associated with the test sta
A railroad car having mass 2.2 x 104 kg moving at 2.50 m/s collides and couples with the two coupled railroad cars, each of the similar mass as the single car and moving in the similar direction at 1.20 m/s. (i) Find out the speed of the three cou
Use the linear equation which provides the height of parachutist in terms of time to find time when parachutist will reach ground.
The dust particles are attracted towards the planet and some of them would ultimately fall onto its surface. Determine the resultant retarding force on the planet due to the dust cloud.
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