Problem based on total electric field
Two point charges lie along the y axis. A charge of q1 = -14.0 µC is at y = 5.0 m, and a charge of q2 = -2.0 µC is at y = -3.0 m. Locate the point (other than infinity) at which the total electric field is zero. y= (m)
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Houses with and without air conditioners on nine different streets in a certain city are shown below. Test (at the 5% level) the null hypothesis that having an air conditioner is independent of street locations of the houses.
Uniform chain of total mass M and total length L lies in a heap on a table. One end is pulled upwards at constant speed v. Show that the force required to do this is equal to the weight of a length b + v^2/g of chain, when a length b has actually
A mine is purchased for $4,000,000/ There will be a salvage value of $300,000 when the land is restored after mining is completed. The mind has an estimated 250,000 tons of coal.
In the binomial probability distribution, let the number of trials be n = 3, and let the probability of success be p = 0.4471. Use a calculator to compute the following.
You live on a busy street, but as a music lover, you want to reduce the traffic noise. If you install special sound-reflecting windows that reduce the sound intensity level by 29.0dB, by what factor have you reduced the sound intensity?
A hiker throws a stone from the upper edge of a vertical cliff. the stone's initial velocity is 25m/s directed at 40 degrees. with the face of the cliff. the stone hits the ground 3.75 s after being thrown and feels no appreciable air resistance a
A turntable 1.50{m} in diameter rotates at 80.0{rpm}. Two speakers, each giving off sound of wavelength 30.7{cm} , are attached to the rim of the table at opposite ends of a diameter. A listener stands in front of the turntable. What is the greate
Assume that during 2007, Baker Mountain company had the opportunity to acquire additional assets at a price of $500 million. The additional assets were expected to increase the company's operating income by $80.
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