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Problem:
You read in a book on poker that the probability of being dealt two pairs in a five-card poker hand is 1/20. This means that
Required:
(i) if you deal thousands of poker hands, the fraction of them that contain two pairs will be very close to 1/20.
(ii) if you deal 20 poker hands, exactly 1 of them will contain two pairs.
(iii) if you deal 10,000 poker hands, exactly 500 of them will contain two pairs.
A 0.55 cm high object generates an image that is 1.2 cm high. The lens has a focal length of 10 cm. Find the image and object distances
A 65.0 kg human sprinter can accelerate from rest to 10 m/s in 2.90 s. all through the same interval, a 33 kg greyhound can accelerate from rest to 20 m/s. calculate (a) change in kinetic energy and (b) average power output for each.
An object is 1.0 cm tall and its inverted image is 3.0 cm tall. What is the exact magnification? A _______ _____ can be considered as an ultrathin beam of light that travels in a straight line until it meets a reflecting or refracting surface.
Two point charges -90.0 mC and +40.0 mC, fixed on the x-axis, At what point along x-axis is the electric field zero
A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill. The crest of the second hill is circular, What must be the height of the hill
A cord of length 1.2 m is fixed at both ends. Its mass per unit length is 1.1 g/m and the tension is 11 N. What is the frequency of the fundamental oscillation
The eyepiece of a compound microscope has a focal length of 2.70 centimeter, and the objective lens has f = 0.740 centimeter. Find the distance between the lenses when the microscope is adjusted for a relaxed eye
A uniform ion beam of radius R consists of N' ions per meter of mass m, speed v, and charge q. Find the Lorentz Force (due to both E and B) on an ion at the edge of the beam. At what speed would the force become zero?
A football is kicked at ground level with a speed of 15.0 m/s at an angle of 34.0° to the horizontal. How much later does it hit the ground
A Helmholtz coil is used to generate a uniform magnetic field. Calculate the magnitude and the direction of magnetic field
Find the first and second derivative with respect to x of f(x) = (exp(x/a)-exp(-x/a))/2, where exp(x)=e^x is the exponential function.
A cowboy fires a silver bullet of mass 5 g with a muzzle speed of 302 m/s into the pine wall of a saloon. What is the temperature change of the bullet
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