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Suppose that there are two forces acting on a sky diver: gravity at 150 pounds down and air resistance at 140 pounds up and 20 pounds to the right. What is the net force acting on the sky diver? 32. Suppose that there are two forces acting on a sky diver: gravity at 200 pounds down and air resistance at 180 pounds up and 40 pounds to the right. What is the net force acting on the sky diver?
A bucket that weights 4 lb and a rope of negligible weight are used to draw water from a well that is 70 ft deep. The bucket is filled with 36 lb of water and is pulled up at a rate of 2.5 ft/s, but water leaks out of a hole in the bucket at a rat..
Let U be a uniform random variable on the interval (-pi/2, pi/2). Let X=sinU. Find the probability density function of X and calculate E(X) and var(X).
Find the demand function , where is the number of the spectators
The weights of full-grown adult female okapis are normally distributed with a mean of 500 pounds and a standard deviation of 30 pounds. What is the probability that
The cover of the tank is a hemisphere with outside radius of 20ft and inside radius of 18ft. How much concrete was used in the cover?
The total surface area of a square based open-top rectangular box is 12 cm^2. Find the dimensions of the box of maximum volume.
It has been recorded that the average number of errors in a newspaper is 4 mistakes per page. What is the probability of having 0 or one error
A restaurant sells ice cream and frozen yogurt. The restaurant makes one order for ice cream and frozen yogurt per week, and the store has enough freezer space for 110 gallons of both products
A steady stream of water flows into a partially-filled rectangular tank. After 6 minutes, there are 87 gallons of water in the tank. After 21 minutes, there are 222 gallons. Write an equation to represent the volume of water in the tank y after x ..
Find the mean and variance of theses draws
A agent makes a monthly rate of $3200 or a $1000 plus 11% commission on a selling price of each item sold by the agent, If the agent chooses the $3200 what dollar amount does the agent expect to sell in one month?
From the top of a 150-ft building Flora observes a car moving toward her. If the angle of depression of the car changes from 18 degrees to 42 degrees during the observation, how far does the car travel?
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