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Two tugboats pull a disabledsupertanker. Each tug exerts a constant force of 1.55 x 106 N,one 20° west of north and theother 20° east of north, as theypull the tanker 0.85 km toward thenorth. What is the total work they do on the supertanker?
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This caused Goodly to borrow to meet its obligations, resulting in a drop in its stock price. Are the directors liable? Explain why or explain why not?
A small earthquake starts a lamppost vibrating back and forth. What is the time constant for the damping of the oscillation
An object of mass 48.0 g is initially placed in boiling water so that it is at 105° C. Then the object is dropped into a calorimeter, Find the specific heat of the object
A block is placed at the bottom of the incline and given an initial velocity V0 directed along the incline. Find what should be the angle of the incline a
Your roommate is working on his bicycle and has the bike upside down. He spins the 66.0cm -diameter wheel, Find the pebbles speed and acceleration
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil, What is the width of the slit
A moon of a planet like the Earth is 4.24 × 105 km distant from the planet's center, and it completes an orbit in 35.5 days. Determine the moon's orbital speed
The earth's magnetic field, with a magnetic dipole moment of 8.0×1022A?m2 , is generated by currents within the molten iron of the earth's outer core. What is the current in the current loop
A wrecking ball (weight = 4600 N) is supported by a boom, which might be assumed to be uniform and has a weight of 3600N. As the drawing shows, a support cable runs from the top of the boom to the tractor. The angle between the support cable and t..
Suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycle/s, and the antenna radiates electromagnetic waves in a region of space. What is the period of the charge oscillation
What is its velocity at impact? What will its average velocity be? What will its average speed be.
An electron is moving at 3.43 x 106 m/s. What is the uncertainty in the velocity of the electron if you want to know its location to within 17 mm
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