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A 5 kilogram block is connected to a 10 kilogram block by a cord on a horizontal, frictionless surface. The 10 kilogram block is pulled horizontally by a force of 30 Newton. Find what is the tension in the cord connecting them?
An explosive is fired from the ground at an angle of 53.1° and a speed of 30.0 m/s. What is the speed of the explosive at the maximum height
In Rutherford scattering of alpha particles from a thin gold foil, determine a maximum possible radius of the nucleus
A laser beam enters a 15.5 cm thick glass window at an angle of 37.0° from the normal. How long does it take the beam to pass through the plate
At T=20degreesC , how long must an open organ pipe be to have a fundamental frequency of 313Hz ? Q 2)If this pipe is filled with helium, what is its fundamental frequency
a metal sphere of radius 23 cm has a net charge of 9.0 x 10-8 c.a what is the electric field at the spheres surface?b
An air conditioner operating between 97F and 72F is rated at 3900 Btu/h cooling capacity. What horsepower is required of the air conditioner motor
The nozzle of a fountain jet sits in the center of a circular pool of radius 3.30 . If the nozzle shoots water at an angle of 65, what is the maximum speed of the water
In a Carnot cycle the area for each transformation corresponds to the following work: (a) isothermal expansion: 31,165 J, (b) adiabatic expansion: 21,517 J, (c) isothermal compression: 24,282 J, (d) adiabatic compression: 21,517 J. Calculate (1) the ..
A car has an initial speed of 30 m/s and slows uniformly to 10 m/s in 5 secs. Determine the distance it travels in the 3rd second (t=2s to t= 3s)
Several people are riding in a hot air balloon. The combined mass of the balloon and the people totals 355 kg. how much mass should be dropped overboard so that the system acquires a net upward acceleration of .150 m/s2
Show that when a region filled with cavity radiation quasistatically and adiabatically expands or contracts the quantities TV^(1/3) and PV^(4/3) remain constant
The sound level measured 5.2 m away from a jet engine is 140 dB. What is the intensity of the sound at 5.2 m? What is the power transmitted by the sound waves? At what distance is the sound level exactly half?
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