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A spider hangs from a tree branch at the end of a 1.8 m thread of web. She spots a dog running right at her in hot pursuit of a squirrel, and needs to get out of the way fast. She fires a very brief blast from her jetpack, which almost immediately gives her a speed of 3.7 m/s horizontally. She swings up along a circle and comes to a stop when her thread makes an angle q relative to the vertical. What is q in degrees?
you height of your eyes above the water 1.75 m are standing 2.00 m from the edge of a 2.50 m deep swimming pool. you
The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides, Calculate the current I.
A 3.0kg object is subject to a restoring force. The potentialenergy of the object as a function of the distance from equilibriumis shown above. What is the objects potential energy when itsdisplacement is +4 cm from its equilibrium position
A proton is confined to a finite potential well ranging from 5E to 80 over a given range of -4L (less or equal to) x (less then or equal to) 0. Determine the free energy state.
What is the minimum potential dissimilarity that must be applied to an X-ray tube to knock a K-shell electron completely out of an atom in a nickel (Z = 28) target
a car is moving with constant velocity v and has wheels of radius r. the car drives over a clump of mud and the mud
Light with a wavelength of 634 nm passes through a slit 7.68 µm wide and falls on a screen 1.85 m away. Find the linear distance on the screen from the central bright fringe to the second dark fringe on either side. cm
A bathroom scale measures the normal force being exerted down on it. A box of mass 9.2kg sits on a bathroom scale that reads 6.2N. What is the tension (in Newtons) in the cable attached to the top of the box
A 55 year old woman who is complaining of intermittent flushing, itching and heartburn for several months. Mega dosing of that of the following vitamins may result in these symptoms.
The Bullet Train The Shinkansen, the Japanese"bullet" train, runs at high speed from Tokyo to Nagoya. Riding onthe Shinkansen, you notice that the frequency of a crossing signalchanges markedly as you pass the crossing.
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.666. Find the smallest value for the angle ?, s..
A 120-V motor has mechanical power output of 2.50 hp. It is 90.0% efficient in converting power that it takes in by electrical transmission into mechanical power, Find the current in the motor
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