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Recently the European Community (EC) decided to lower its subsidies to makers of pasta. In deciding by what amount to reduce total subsidies, experiments were carried out for determining the possible reduction in exports, mainly to the United States, that would result from the subsidy reduction. Over a small range of values, economists wanted to test whether there is a positive correlation between level of subsidy and level of exports. A computer simulation of the economic variables involved in the pasta exports market was carried out. The results follow. Assuming that the simulation is an accurate description of reality and that the values obtained may be viewed as a random sample of the populations of possible outcomes, state whether you believe that a positive rank correlation exists between subsidy level and exports level over the short range of values studied
An ice skater rotating 3.85 rad/s with arms extended has a moment of inertia of 2.31 kg*m^2. what is the final angular speed
A box of ant aunts m1 = 1.65kg and a box of ant uncles m2 = 3.30kg, slide down an inclined plane while attached by a massless rod parallel to the plane. The angle of the incline is zeta = 30 degree. The cefficient of the kinetic friction between the ..
Your roommate is working on his bicycle and has the bike upside down. He spins the 70.0cm -diameter wheel, What is the pebble's speed and acceleration
An empty parallel plate capacitor is connected between the terminals of a 15.6-V battery and charges up. The capacitor is then disconnected from the battery, and the spacing between the capacitor plates is doubled.
Establish the average net force
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are decided to be 47.4 km/s and 64.3 km/s. The slower planet's orbital period is 6.37 years.
A volleyball is spiked so that it has an initial velocity of 15 m/s directed downward at an angle of 55° below the horizontal. What is the horizontal component of the ball’s velocity when the opposing player fields the ball?
In your lab is a steel vessel having a volume of 15.0L you charge the vessel with 2.00 moles of H2 and 1.00 moles of O2. What is the partial pressure of the hydrogen
q1. water flows over victoria falls which is 128 m high at an average rate of 1.6 times 106 kgs. the acceleration of
How far from this wire is the magnetic field it produces equal to the Earth's magnetic field, which is approximately 5.0×105T
A proton beam in an accelerator carries a current of 105 µA. If the beam is incident on a target, how many protons strike the target in a period of 29.0 s
A 1,8000-kg SUV rounds a flay (unbanked) curve with a radius of 90m. the average coefficients of kinetic and static friction between the tire of the car and the road are static coefficient = 0.85, What is the maximun driving speed for the car
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