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A bungee jumper with mass 0.63 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a lowpoint eight more times in 35.3 s. He finally comes to rest 29.0 mbelow the level of the bridge. Calculate the spring stiffnessconstant of the bungee cord. Also, calculate the unstretched length of the bungee cord.
a 5.80kg piece of solid copper metal at an initial temperature t is placed with 2.00 kg of ice that is initially at
Calculate the total number of electrons bombarding the target of an X-ray tube operated at 100 mA for 0.1 seconds
Two lenses, one converging with focal length 21.0cm and one diverging with focal length ? 10.0cm , are placed 25.0?cm apart. Find the final image distance from second lens
A 75g lead sinker at 90 degrees celsius is placed in 500 cm^3 of water at 20 degrees celsius. What is the final temperature of the sinker
The displacement of an object moving under uniform acceleration is some function of time and the acceleration. Suppose we write this displacement as s=ka^mt^n, where k is the dimensional constant. Show by dimensional analysis that this expression ..
A worker pushes horizontally on a large crate with a force of 185 N, and the crate is moved 4.4 m. How much work was done
The picture below represents the crests of water waves spreading out from a periodic disturbance in a pond. The phase difference (in degrees) between points A and E is
a crowbar 2m long is used to lift a rock 800n. if the fulcrum is 0.25m from where the crowbar touches the rock, how much effort must be applied to move the rock
A uniform meter stick is in static rotational equilibrium when a mass of 220 g is suspended from the 5.0-cm mark, What is the mass of the meter stick
While driving north at 25 m/s during a rainstorm you notice that the rain makes an angle of 38 with the vertical. find the speed of the raindrops relative to the ground
question an auto race is held on a circular track. a car completes one lap in a time of 19.3 s with an average
A block of mass M is attached to a spring ofspring constant k and is moving with constant speed in a horizontalcircle on a frictionless table. You measure that the time it takesthe mass to make one complete circle is T seconds.
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