Reference no: EM13661528
Problem 1: A water tank standing on the floor has to small holes vertically above one another punched in one side. The holes are 2 cm and 8 cm above the floor.
1. Compute the distance x.
2. At what depth should a single hole be made to maximize x?
3. How high does the water stand in the tank (calculate H)
Problem 2: A horizontal block-spring system has a total mechanical energy of 10J, the amplitude of 0.2m, and a maximum speed of 1.5m/s. Find:
1. The spring content, k.
2. The mass of the block, m
3. The frequency of oscillation, f.
Problem 3: 1 kg piece of metal is heated to a high temperature T metal, and then dropped into a beaker containing 0.1kg of water at 20 degrees Celsius and 0.5 kg of ice at 0 degrees Celsius. Compute the initial temperature of the metal T metal, if the specific heat of the water is CH20 = 4186 J/kg degrees Celsius and the final equilibrium temperature of the mixture is 80 degrees Celsius. (Lf = 333,000 J/kg for water, c metal = 400 J/kg degrees Celsius)
Problem 4: An oscillator consists of a block attached to a spring (k = 40 N/m). At some time t, the position, velocity and acceleration of the block are: x = 5m, v = 10 m/s and a =-1.48m/s^2. Compute the frequency of oscillation, the mass of the block and the amplitude of the motion.
Problem 5: A horizontal spring oscillates by an amplitude A = 5cm. What is the magnitude of the displacement "x" when the kinetic energy KE is half the elastic potential energy U spring?
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What is the lifetime according to a hypothetical person
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What is angle during which ant rotates-length of ants ride
: A 10-inch diameter vinyl record rotates on a turntable at 33 rpm. A thrill-seeking ant rides along on the edge of the record. The turntable is abruptly reset to 45 rpm. The turntable reaches 45 rpm in time of 1.1 s. through those 1.1 s, what is the (..
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The source of a sound wave has a power
: The source of a sound wave has a power of 8.34μW. If it is a point source, (a) what is the intensity and (b) the sound level at 2.29 m. distance?
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Locus encodes enzyme necessary for production of cyanine
: In maize, the A locus encodes an enzyme necessary for production of anther cyanine, a purple pigment. At this locus, a functional A allele is dominant to a non functional a allele. Kernels of maize line 1 are completely white. Kernels of maize line 2..
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Water tank standing on floor has to small holes vertically
: A water tank standing on the floor has to small holes vertically above one another punched in one side. The holes are 2 cm and 8 cm above the floor.
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Two people start at similar place and walk around lake
: Two people start at the similar place and walk around a circular lake in opposite directions. One has an angular speed of 1.60*10-3 rad/s, while the other has an angular speed of 3.10*10-3 rad/s. How long will it be before they meet?
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Spring on friction less horizontal surface
: A mass is attached to a spring on a frictionless horizontal surface. The mass is pulled to stretch the spring by .1 m and then gently released. A short time later, as the mass passes during the equilibrium position, its speed is 1 m/s.
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Pitcher throws curve ball that reaches the catcher
: A pitcher throws a curveball that reaches the catcher in 0.53 s. The ball curves as it is spinning at an average angular velocity of 315 rev/min (assumed constant) on its way to catcher's mitt. What is the angular displacement of the base ball (in ra..
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Monochromatic light problem
: In an experiment, monochromatic light of λ= 400. nm is incident on a a single slit by a width of 1600.nm. Bright and dark fringes are view on a screen and teh angular positions of the maxima and the minima are measured.
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