Solve.The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of   is needed to keep an  car traveling at 20 mph from skidding on a curve of radius  what force would be required to keep the same car from skidding on a curve of radius -4.0px;" /> at  Round your answer to the nearest pound of force.



A. 7462 pounds

B. 8164 pounds

C. 7594 pounds

D. 7626 pounds

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Answer: C

Mathematics

Solve the problem.A 100 gal tank is half full of distilled water. At time = 0, a solution containing 2 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of   When the tank is full, how many pounds of concentrate will it contain?

A. 175 pounds B. 200 pounds C. 150 pounds D. 187.5 pounds

Draw a valid conclusion from the given premises.If it rains, I get gloomy.If I get gloomy, I go to a movie Therefore....

What will be an ideal response?

Determine the measure of the interior angle at vertex A.

A. 240 B. 54 C. 144 D. 180

Find f (x) by solving the initial value problem. ? ;  ?

A.
B.
C.
D.
E.