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Tarzan swings on a 30.0 m long vine initially inclined at an angle of 37.0o with the vertical.
a) Sketch a diagram and indicate your reference level.
b) What is his speed at the bottom of the swing?
c) If he pushes off with a speed of 4.00 m/s what is his speed at the bottom of the swing?
The frequency doubled output of a Nd3+ YAG laser has a wavelength of 532nm. If each pulse of light has a total energy of 0.550J and the repetition rate of the laser is 30Hz, how many photons does the laser emit at 532nm in 3 minutes.
A steel tank contains 342 g of ammonia gs (NH3 with molar mass 17.0 g/mol) at a pressure of 1.13 x 106 and a temperature of 70.6oC. What is the volume of the tank in liters
A spring with a spring constant of 42.0 N/cm has a block attached to one end and the other end is fixed. How much additional work is done by the spring if it is stretched by an additional 15.2 mm
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1020 Hz. The bird-watcher, however, hears a frequency of 1060 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
A 10kg block is set moving with an initial speed of 6 m/s on arough horizontal surface. If the force of friction is 20N,approximately how far does the black travel before it stops
There is a long smooth slope and we release balls from the top of it every 1.5 s. Suppose the acceleration of the ball is 4.8 m/s2 and every ball is numbered in the releasing order.
An L-R-C series circuit, R= 160 Ω, L= 0.700 H, and C= 1.90×10-2 μF. The source has a voltage amplitude of 160 V and a frequency equal to the resonance frequency of the circuit. what is the average power delivered by the source
Hoover Dam on the Colorado River is the highest dam in the United States at 221 m, with an output of 1300 MW. Calculate the power in this flow
At a point where an irrigation canal having a rectangular cross section is 18.3m wide and 3.70m deep, the water flows at 2.25cm/s. How deep is the canal at this point
You are driving north on 107th Avenue at a speed of 32.6 mph. At what frequency do you year the siren
the frequency of a tuning fork can be found by the methodshown in figure 13-24. a long tube open at both ends is
Two thin rods of length L are rotating with the same angular speed ? (in rad/s) about axes that pass perpendicularly through one end. Find the kinetic energies of rod A with its attached particle and of rod B
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