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The Aurora city economist, I. C. Recession, uses the previous year's growth in the money supply (in percent) to forecast the inflation rate (in percent) for Aurora. Using data for 35 years, Recession has built the following regression model (Y is inflation in percentage; X is money supply growth in percentage).
Interpret this regression equation; then forecast next year's inflation rate if the money supply grows by 8.2%. Place 90% confidence limits around this estimate. What is the probability that the rate of inflation will be over 15%?
a professional skiers initial acceleration on fresh snow is 90 of the acceleration expected on a frictionless inclined
A sky diver of mass 60 kilogram can slow herself to a constant speed of 93 km/h by orienting her body horizontally, Find what is her acceleration at the instant she achieves the "knife" position
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A lady at an airport is pulling a 15 kilogram suitcase with wheels at constant speed by pulling on a strap at an angle θ above the horizontal. Find what is the angle θ
illustrate a diagram to show the forces acting on the aircraft while it is flying in a horizontal circle with its wing banked at an angle to horizontal.
The area of a 140 turn coil oriented with its plane perpendicular to a 0.19T magnetic field is 4.9 ×102 m2. Find the average induced emf in this coil
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A car traveling at 115 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.75m. What was the magnitude of the average acceleration of the driver
A generator is designed to produce a maximum emf of170 V while rotating with an angular speed of 3700 rpm. determine how many turns of wire are needed
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
A 20kg ball is moving at 10 m/s in the positive direction of the x axis when it collides with a 10kg ball initially at rest. calculate the speed of both balls after the collision
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