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Spiderman's webbing has a cross sectional area of A = 10^-6 m^2. The Young's modulus of the silk is Y = 200 x 10^10 Pa, and has a breaking strength of 1 x 10^9 Pa. Assume Spiderman, of mass m = 80 kg, is swinging along the end of a web-rope of length
L = 30m.
A. How much force can be applied to the Spiderman web-rope before it breaks?
B. How far will it have stretched before breaking?
The viscous force on an oil drop is measured to be equal to 3.0X10^-13 N when the drop is falling through the air with a speed of 4.5X10^-4 m/s. If the radius of the drop is 2.5X10-6 m, what is the viscosity of air?
We can roughly model a gymnastic tumbler as a uniform solid cylinder of mass 68.0 kg and diameter 1.20 m. What percent of his total kinetic energy is rotational
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two stationary positive point charges charge 1 of magnitude 3.20nc and charge 2 of magnitude 1.50nc are separated by a
Calculate the magnitude of the gravitational force exerted on a 611-kg satellite that is a distance of two earth radii from the center of the earth, What is the magnitude of the earth's acceleration
A girl delivering newspapers travels 2 blocks west, 2 blocks north, and then 5 blocks east. What is her resultant displacement
A uniformly accelerated car passes three equally spaced traffic signs. The signs are separated by a distance d = 25 m. The car passes the first sign at t = 1.3 s, What is the magnitude of the acceleration of the car
A long, straight wire carrying a current of 316 A is placed in a uniform magnetic field that has a magnitude of 7.42 × 10-3 T. Find a point in space where the net magnetic field is zero
The loaded cab of an elevator has a mass of 3.00 multiplied by 103 kg and moves 171 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
1. an observer stands between two sound sources. source a is moving away from the observer and source b is moving
An 845-N sled is pulled a distance of 170 m. The task requires 1.10 x10^4 J of work and is done by pulling on a rope with a force of 12N. At what angle is the rope held.
a large uniform solid disc has a mass of 50 kg with a 10 kg 0.75 m long uniform rod added radially from the dsics axis
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