Recent content by Sportsman4920

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    Calculating Effective Yield on Discount Loan

    Find the effective yield on a discount loan with the given discount rate r and the time. (Round your answer to two decimal places.) r = 2.7%, 11 months I tried using the equation r=(1+i/t)^t, but could not come up with the exact correct answer. I know the answer should be about 2.8 or...
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    A couple probability questions

    Thanks for the help. I tried using bayes theorem for the first problem by doing the probability of the first earn given the ball is white. So 1/W. Which is .4x.2/(.4x.2 + .6x.8) and got .1429. Then multiplied that by .4x.2 because knowing it is the same earn and the ball is white, the...
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    A couple probability questions

    1. An urn contains 2 white balls and 8 red balls. A second urn contains 8 white balls and 2 red balls. An urn is selected, and the probability of selecting the first urn is 0.4. A ball is drawn from the selected urn and replaced. Then another ball is drawn and replaced from the same urn. If...
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    Probability of bridge collapsing

    Thanks a lot. I had been working on that one for a while.
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    Probability of bridge collapsing

    Homework Statement Dystopia county has three bridges. In the next year, the Elder bridge has a 17% chance of collapse, the Younger bridge has a 6% chance of collapse, and the Ancient bridge has a 24% chance of collapse. What is the probability that exactly one of these bridges will collapse...
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    How Does Charging a Capacitor Affect the Induced Magnetic Field?

    Homework Statement A 1400 nF capacitor with circular parallel plates 1.0 cm in diameter is accumulating charge at the rate of 25.0 mC/s at some instant in time. What will be the magnitude of the induced magnetic field 9.0 cm radially outward from the center of the plates...
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    Solving Ski Slope Friction: Find Speed & Distance

    It just doesn't seem like there is enough information to figure this out, don't you need the weight of the skier?
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    How Did a Ski Diver Survive a 360m Fall into Snow?

    W=(84*9.8)-1/2(50)squared*1.1 does the force exerted by the snow to bring him to rest have to be more than or equal to the force he exerts on the snow?
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    How Did a Ski Diver Survive a 360m Fall into Snow?

    An airplane pilot fell 360 m after jumping from an aircraft without his parachute opening. He landed in a snowbank, creating a crater 1.1 m deep, but survived with only minor injuries. Assuming the pilot's mass was 84 kg and his terminal velocity was 50 m/s, estimate the following. (a) the...
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    Solving Ski Slope Friction: Find Speed & Distance

    A ski starts from rest and slides down a 23° incline 60 m long. Use energy methods. (a) If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline? m/s (b) If the snow is level at the foot of the incline and has the same coefficient of friction, how far will...
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    Calculate: Block's Kinetic Energy, Work by Forces, & Gravity

    Thanks, now I'm trying to find the work done by friction. so I did W=25N*5.2(distance)*cos(theta but it didn't work
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    How Long Will It Take for a Car to Accelerate from 55 km/h to 75 km/h?

    when I plug the numbers into the equation 75=55+at I get 20=5.263t t=3.8001, but when I plug that in it is wrong. And that would be the same time as it took to get from 35 to 55 ??
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    How Long Will It Take for a Car to Accelerate from 55 km/h to 75 km/h?

    If a 1500 kg car can accelerate from 35 km/h to 55 km/h in 3.8 s, how long will it take to accelerate from 55 km/h to 75 km/h? Assume the power stays the same, and neglect frictional losses what I have tried so far: 55=35+a3.8 a=5.263 km/h squared 75 squared= 55 squared +...
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