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A 280-kg cylindrical piece of concrete pipe 1.0 m in diameter, 1.3 m long, and 3 cm thick is rolling toward you at a speed of 5 m/s. What is its approximate rotational angular momentum? (magnitude and direction).
Name the subtype of equilibrium (out of thermal, phase, mechanical and chemical equilibriums) that is at play in the following situations? A) Vapor floating over the surface of a lake on a cold winter morning. (4) B) Measuring the temperature of a..
Jimmy has caught two fish in Yellow Creek. He has tied the line holding the 3.0 kg steelhead trout to the tail of the 1.5 kg carp. To show the fish to a friend, he lifts upward on the carp with a force of 60 N. Draw a free-body diagram for the carp. ..
An airplane is dropping bales of hay to cattle stranded in a blizzard on the Great Plains. The pilot releases the bales at 140m above the level ground when the plane is flying at 80.0m/s 45.0 degrees above the horizontal. How far in front of the catt..
The work function for aluminum is 4.08 eV. Find the cutoff wavelength for aluminum
Find the force exerted by the plane on the pilot
You are driving to the grocery store at 20. You are 100 from an intersection when the traffic light turns red. Suppose that your reaction time is 0.70 and that your car brakes with constant acceleration. What acceleration would bring you to rest r..
The expression found in part (d) is a cubic equation. There are standard algebraic solutions to this type of equation, but it is sometime quicker and easier to use other methods. explain a way to get a reasonably accurate estimate of v (say, to th..
A particle of mass m0 is given a kinetic energy equal to one-fourth its rest-mass energy. How fast must the particle be traveling
A 53.5 kg pole vaulter running at 11.4 m/s vaults over the bar. Her speed when she is over the bar is 1.14 m/s. determine her altitude as she crosses the bar
A recent discovery of human bones revealed only 26.5 % radiocarbon activity compared to live human bones. Estimate the age of the bones
Two small spheres spaced 35.0 apart have equal charge. How many excess electrons must be present on each sphere
A 30 ohm resistor has a voltage difference of 3 volts across its leads. What is the power being dissapated in the resistor
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