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When you blink your eye, the upper lid goes from rest withyour eye open to completely covering your eye in a time of 0.024s.
a.Estimate the distance that the top lid of your eye movesduring a blink.
b.What is the acceleration of your eyelid? Assume it to be constant.
c.What is your upper eyelid's final speed as it hits thebottom eyelid?
Iron tower is 325 meters tall on a cold day. (T= -6.3 degrees Celcius). What is the final height (total) of the tower on a hot day when the temperature is 39.6 degrees Celcius? Record your answer to two decimal places.
A shell is shot with an initial velocity of 29 m/s, at an angle of ?0 = 62° with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass (see the figure). One fragment, whose speed immediately after the explo..
A weightless spring of force constant 2.50N/cm is 15.0 cm long whennothing is attached to it. It is now used to pull horizontally on a12.5 kg box on a smooth horizontal floor. How long is the spring during this motion
Calculate the positron and electron beam energy needed to create a Higgs boson (mass 125GeV) in the CMS system
Lisa swims in the sea and she measures the time between two waves that washes over her. The average elapsed time between the waves is 1.2 s. Find what is the frequency
A spring with spring constant 40N/m is attached to the ceiling, and a 5.5-cm-diameter, 1.5kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
A copper plate, with dimensions of 3 cm x 3 cm x 5cm length, width, and thickness respectively, determine the temperature rise in the plate after 10 seconds
A long non-conducting cylinder has a charge density p = Alpha R, where Alpha = 6.53 C/m4 and r is in meters. Concentric around it is a hollow metallic cylindrical shell. find the surface charge density inside the hollow cylinder
A uniform rod of length 4 m and of weight 5 N is supported at its extreme right end by a fulcrum as shown. A block of weight W = 10 N is sitting 1 m from the fulcrum. An upward force F is applied at the extreme left end. What is the force F needed..
A skier starts down a 26 slope. After a vertical drop of 28 m, the slope temporarily levels out and then drops at 19 an additional 39 m vertically before leveling out again. What is the skier's speed on the lower level stretch
in the early 1900s robert millikan used small charged droplets of oil suspended in an electric field to make the first
these problems are in a cycle context. in this cycle air is first compressed in a piston-cylinder cylinder assembly in
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