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Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.6×106N, one an angle 19o west of north and the other an angle 19o east of north, as they pull the tanker a distance 0.76 km toward the north.
What is the total work they do on the supertanker?
Express your answer using two significant figures.
A cosmic ray proton moving toward the Earth at 5.5 x 10^7 m/s experiencing a magnetic force of 1.85 x10^-16N. What is the strength of the magnetic field.
The magnetic field over a certain range is given by B= Bxi + Byj where Bx= 6T and By= 4T. What is the j component of the force
A fish lies 112 cm below the surface of a clear pond. If the index of refraction of water is assumed to be 1.33 and that of air is approximately 1, how far below the surface does the fish appear to a person looking down from above at an angle?
A thin cable 2m long with a mass of 100g is fixed at both ends. Its tension is 20N. What is the frequency of this mode of vibration
In April 2010, the worst oil spill until that time occurred when an explosion and fire on the Deepwater Horizon left 11 workers dead and began releasing oil into the Gulf of Mexico.
A gas expands from I to F. The energy added to the gas by heat is 442 J when the gas goes from I to F along the diagonal path. What is the change in internal energy of the gas.
A Michelson interferometer splits a beam of light of unknown wavelength producing a bright fringe (i.e., all of the intensity) at the detector, What is the wavelength of the unknown light
The electronic spectrum of the molecule butadiene can be approximated using the one dimensional particle in a box if one assumes that the conjugated double bonds span the entire four carbon chain
A tube of radius 5 cm is connected to tube of radius 1 cm as shown above. Water is forced through the tube at a rate of 10 liters/min. What is the velocity of the water in the 5 cm radius tube
A 80-g ball collides elastically with a 320-g ball that is at rest. If the 80-g ball was traveling in the positive x-direction at 5.75 m/s before the collision
4.60g of nitrogen gas at 22.0?c and an initial pressure of 3.30atm undergo an isobaric expansion until the volume has
A circuit consists of a 0.15 microF capacitor, a 600 ohm resistor, and a 70 mH inductor in series. Calculate the rms current flow
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