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Question: Two cylinders each with a 60 cm diameter, thatare closed at one end, open at the other, are joined to form asingle cylinder, then the air inside is removed.
How much force does the atmosphere exert onthe flat end of each cylinder?
Suppose one cylinder is bolted to a sturdyceiling. How many 99 kg football players would need to hangfrom the lower cylinder to pull the two cylinders apart?
An extreme skier, starting from rest, coasts down a mountain that makes an angle 25.0 degree with the horizontal. Evaluate how fast is she going just before she lands
A high speed test track for cars has a curved section an arc of a circle of radius r= 752 meter. Find the normal force from the road on the car in this situation
A hiker starts at his camp and moves the following distances while exploring his surroundings: 55.0 m north, 2.75x10^2 m east, Find his resultant displacement from camp
A system consists of 3.0 kg water at 80 degrees Celsius 30 J of work is done on the system by stirring with a paddel wheel, What is the change in internal enery of the system
what is the meaning of a ground speed? Justify why the ground speed is different from air speed. Will there ever be conditions under which the ground speed and the air speed be the same
question1air is blown throughout a circular and horizontal venturi tube. the diameters of narrow and wider sections of
Two cars of collide in a glancing collision and stick together. Before the colli- sion the first car (mass of 500 kg) is moving with velocity 25 m/s at an angle of 30%u25E6 North of East, Determine the momentum of each car in a suitable Cartesian c..
A thin film of oil (n = 1.30) is located on smooth, wet pavement. When viewed perpendicular to the pavement, How thick is the oil film
An ac generator supplies a peak (not rms) voltage of 120.0 V at 60.0 Hz. It is connected in series with a 50.0-Ω resistor, What is the rms voltage of the generator
An engine transfers 2.5 X 103 J of energy from a hot reservoir during a cycle and has an efficiency of 0.3. How much heat is transferred as exhaust to a cold reservoir
Hot air balloons float in the air because of the difference in density between cold and hot air. What is the density ρh of hot air inside the balloon? Assume that this density is uniform throughout the balloon.
Body fat has an energy content of about 38,000 Joules per gram. Suppose your weight has been constant, how much weight will you have gained
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