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Q. A vertical tube open at the top contains 5.2 cm of oil (density 0.82 g/cm^3) floating on 5.2 cm of water. Find the gauge pressure at the bottom of the tube.
Q. A spring is hung from the ceiling. A 0.357-kg block is then attached to the free end of the spring. When released from rest, the block drops 0.153 m before momentarily coming to rest, after which it moves back upward. (a) What is the spring constant of the spring? (b) Find the angular frequency of the block's vibrations.
With what force F should she pull down on the rope to accelerate herself and platform upward at a rate of 0.77 m/s2.
Which of following statements is correct
Two charged pith balls are suspended on very light 10.7 cm strings. Each has a mass 11.0 g. In stability, the total angle between the strings is 37 degrees. Draw the free body diagram for one of the pith balls and clearly label all forces with magnit..
A 128 carton is pulled up a frictionless baggage ramp inclined at 30.0 above the horizontal by a rope exerting a 72.60 pull parallel to the ramp's surface. If the carton travels 5.20 along the surface of the ramp, compute the work done on it by the r..
The linear impulse delivered by the hit of a boxer is 248 N • s during the 0.373 s of contact. What is the magnitude of the average force exerted on the glove by the other boxer? React in units of N
Find out an acceleration of mass and tension in the string
Suppose the Eskimo is pushing the same 50.0-kg sled across level terrain with a force of 50 N. If he does 4 x 10^2J of work on the sled while exerting the force horizontally, through what distance must he have pushed it.
How far will it travel before becoming airborne
What is wavelength of the X-ray photon
A continuous line of charge lies along an x axis, extending from x = +x0 to positive infinity. The line carries charge with the uniform linear charge density λ0. What are the magnitude and direction of the electric field at the origin.
Without taking the existence of the nebula into consideration, based on its apparent magnitude, how far away does the star in part (b) appear to be? What would the propotion error be in determining the distance if interstellar extinction were negl..
At a construction site, a 63.0 bucket of concrete hangs from a light (but strong) cable that passes over a light friction-free pulley and is connected to an 83.0 box on the horizontal roof. The cable pulls horizontally on the box, and a 45.0 bag of g..
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