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The plastic tube in the figure has a cross-sectional area of 6.69 cm2. The tube is filled with water until the short arm (of length d = 0.602 m) is full. Then the short arm is sealed and more water is gradually poured into the long arm. If the seal will pop off when the force on it exceeds 7.92 N, what total height of water in the long arm will put the seal on the verge of popping?
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.6 m radius and is 1.2 m high. The walls are 1.0 cm thick.
A 2000 kg car rounds a curve of radius 70 banked at an angle of 12. What is the magnitude of the friction force
A system performs 352 J of work on its surroundings while losing 133 J of internal energy. Determine the heat transferred to the system during this process
The critical angle for total internal reflection at a liquid-air interface is 45.0^\circ. what angle does the refracted ray in the air make with the normal
A 10000 kg empty railroad car moving at 3 m/s collides with a loaded railroad car weighing 196000 N and couples with it. What is the final velocity of the combined railroad cars
A bar-shaped piece of silicon at room temperature is one inch inlength and has a 100 μm2 cross-sectional area (i.e. 10x10μm). It is doped with phosphorous to a concentration of1017/cm3. Find the electrical current through the bar when avoltage of ..
The wavelength of red helium–neon laser light in air is 632.8 nm. What is its frequency? What is its speed in the glass?
An asteroid is headed towards a starbase. To try and avoid a collision, an explosive device is planted on the asteroid, Does the other piece of the asteroid hit the starbase
You have been employed by the local circus to plan their human cannonball performance. For this act, a spring loaded cannon will shoot a human projectile, the Great Flyinski, across the big top to the net below. What do you tell the ringmaster
Multiple-Concept Example 1 discusses the concepts that are relevant to this problem. obtain the rise in its temperature
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.00e-4 m3 and its mass is 3.48 kg. (a) What mass of gold is contained in the rock in kg? (b) What percentage of the rock is gold by volume? (..
two point charges of equal magnitude are 7.8 cm apart. at the midpoint of the line connecting them their combined
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