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If an object is near the surface of the earth, the variation of its weight with distance from the centre of the earth is negligible. The weight of an object at sea level is given as mg. Given that the acceleration due to gravity at sea level is 9.81 m/s2 and the radius of the earth is 6370km, at what height above the surface does the weight decrease to 0.99 mg? What will be the value of g at that height?
a football coach starts at the 35 yard-line and walks to the 15-yard line. He turns around and walks to the 40-yard line. He turns around again and walks back to the 0-yard line. He turns around one more and walks back to the 25-yard line thus completing his 10 min of pacing. The coachs average speed is
Find the maximum modulus of f(z)=2z+5i on the closed circular.
prove the therome that if astatment can be proved by induction two it can proved by induction first
give some examples of intensive and extensive properties
how many moles of Na is required to react with acetalene
Show that Price Effect can be broken down into income and substitution effect,
by using both Hicks and Slutsky Approach.
5 When the price of good X falls from
9, the demand for good Y
increased from 20 Kg. to 25 Kg.
a) What is the cross elasticity of demand of good Y for good X?
b) Are Goods X and Y compliments or substitutes?
Assess what the results of the regression equation tells managers and how it is likely to impact decisions made related to maximizing profitability.
An investor sells a stock short for $36 a share. A year later, the investor covers the position at $30 a share. If the margin requirement is 60 percent, what is the percentage return earned on the investment? Redo the calculations, assuming the price of the stock is $42 when the investor closes the position.