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A barge is in a rectangular lock on a freshwater river. The lock is 60.0 m long and 20.0 m wide, and the steel doors oneach end are closed. With the barge floating in the lock, a2.50 x 10^6 N load of scrap metal is put onto the barge. Themetal has densith 9000 kg/m^3.
a) Whe the load of the scrapmetal, initially on the bank, is placed onto the barge, whatvertical distance does the water in the lock rise?
b) The scrap metal is now pushed overboard into the water. Does the water level in the lock rise, fall, or remain the same? If it rises or falls, by what vertical distance does it change?
A sledge loaded with bricks has a total mass of 17.5 kg and is pulled at constant speed by a rope inclined at 20.3° above the horizontal. How much work is done by the rope on the sledge
What happens to the period of a mass-on-a-spring simple harmonic oscillator if the mass is doubled? What happens to the period if the spring constant is reduced by a factor of 3? How does the period depend on the amplitude of the oscillation?
Find out the magnitude of the centripetal force.
A quarterback claims that he can throw the football a horizontaldistance of 196.6 m (215 yd). Furthermore,he claims that he can do this by launching the ball at therelatively low angle of 25° above the horizontal. To evaluate his claim, determine ..
A homogeneous cylinder of radius 24.0cm and mass 40.0kg is rolling without slipping along a horizontal floor at 8.30m/s. How much work is needed to stop the cylinder
If linear momentum is conserved when there is no external force applied, how is angular momentum conserved? 2. The change in angular momentum with the change in time is equal to what?
The coefficient of kinetic friction between a 20 Kg box and the floor is 0.40. How much work does a pulling force do on the box in pulling it 8.0 m at the constant speed? The pulling force is directed 390 above the horizontal.
According to the shop manual, when drilling a 12.1-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1400 rev/min. find the maximum linear speed of any part of the bit
Two trucks of equal mass collide at a 90 intersection. If the momentum of truck A is 9.50x10^4 kg km/h east and the momentum of B is 1.05x10^5 kg km/ north, what is the resulting momentum of the final mass
The tires of a car make 51 revolutions as the car reduces its speed uniformly from 95km/h to 38km/h. What was the angular acceleration of the tires
If the gas is irradiated with monochromatic light of 466 nm wavelength, what is the wavelength of the Raman scattered light
A thin soap film (n = 1.35) is suspended in air. The spectrum of light reflected from the film is missing two visible wavelengths of 490.8 nm and 589.0 nm, What is the thickness of the soap film
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