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A bungee jumper falls for 1.3s before the bungee cord beginsto stretch. Until the jumper has bounced back up to this level, thebungee causes the jumper to have ab average acceleration upward of4m/s?
(a) How fast is the jumper going when the bungee cord beginsto stretch?
(b) How far below the diving platform is the jumper at thatmoment?
(c) How long after the bungee cord begins to stretch does thejumper reachthe low point of the drop?
(d) How far below the diving platform is the jumper at theinstant the speed is zero?
A marble has mass .9kg it is released from height=3m down a ramp into a loop-the-loop of radius=1. At the top of the loop-the-loop, what is the force the track exerts on the marble
A 57 kg tightrope walker stands in the middle of a rope. Her weight makes the rope sag, evaluate the rope tension
A circular loop of wire is in the plane of the paper. The south pole of a bar magnet is being moved from a position in front of the paper in a direction away from the center of the loop. Which is the direction of the induced current in the loop?
The jumping squirrel. A squirrel wants to jump from a point A on a branch of a tree to a point B on another branch. The horizontal distance from A to B is x = 5 ft, and the vertical distance is y = 4 ft. If the squirrel jumps with an initial speed..
A 4.20–kg block is set into motion up an inclined plane with an initial speed of vi = 7.40 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of ? = 30.0° to the horizontal.
A photon with an initial wavelength of 1.150×10-11 m Compton scatters from an electron which is initially at rest. What is the energy of the incoming photon
A jetliner, traveling northward, is landing with a speed of 65m/s. Once the jet touches down, it has 715 m of runway in which to reduce its speed to 6m/s
A 800kg , light-weight helicopter ascends from the ground with an acceleration of 3.50m/s2. What is the work done by the gravitational force
A 0.5 kg mass moves on a plane in a circular path of circumference 1m at a speed of 1.32 m/s. What is the angular momentum of this mass
An RLC circuit is connected to a 220 V 60 Hz ac voltage source. Determine the power loss in the circuit
Infrared light of wavelength 2.5micrometers illuminates a 0.20-mm-diameter hole. What is the angle of the first dark fringe in radians
A pair of oppositely charged parallel plates is separated by 5.44 mm. A potential di?erence of 631 V exists between the plates. What is the strength of the electric field between the plates
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