Calculate the change in potential energy
Calculate the change in potential energy of a 88.4 kg man when he takes an elevator from the first floor to 33th floor, if the distance between floors is 3.93 m.
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A train with proper length of 200m is traveling at the speed of 120km/hr. An observer on the ground sees two lightening striking the two ends of the train at exactly the same time. What is the time interval of the lightening strikes observed by th
An electron of mass 9.11x10^-31 kg has an initial speed of 2.40x10^5 m/s. It travels in a straight line, and its speed increases to 6.80x10^5 m/s in a distance of 4.80 cm. Assume its acceleration is constant. (a) Determine the magnitude of the for
Allowance for Doubtful Accounts has an unadjusted balance of$1,100 at the end of the year, and an analysis of customers'accounts indicates doubtful accounts of $12,900. Which of the following records the proper provision for doubtfulaccounts?
(a) Determine the net force exerted on q1 by the other two charges. (b) If q1 had a mass of 1.50 g and it were free to move, what would be its acceleration?
On January1, 2004, ABC Company purchased equipment for $98,000. The equipment was assigned a 12-year life, a $14,000 residual value, and was being depreciate dusing the straight-line method.
A 1.30 kg box slides down a rough incline plane from a height h of 1.87 m. The box had a speed of 2.33 m/s at the top and a speed of 1.90 m/s at the bottom. Calculate the mechanical energy lost due to friction (as heat, etc.).
The West Company uses the percent of ending A/Rmethod. Credit sales for the yearwere $5,000,000. Ending Accounts Receivable was$300,000. Experience has shown that .005 of credit sales willbe uncollectible and that .09 of accounts receivable will b
As a result, each object experiences an electrostatic force that has a magnitude of 1.01 × 10-20 N. How many electrons did it take to produce the charge on one of the objects?
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This term describes the sampling units (counties or geographically split counties) as defined by Nielsen Media Research Inc.
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Having recently completed her Master of Business Administration (MBA) degree, Mitsuki understands how important identifying and satisfying the target market