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Common sports injuries result in the tearing of tendons and ligaments due to over stretching. If the anterior cruciate ligament (ACL) in an athlete's knee has a length of 1.0 cm, a breaking point of 1.9x10^8 Pa, and a Young's modulus of 6.0x10^8 Pa, how far must it be stretched from its relaxed length to tear it?
Imagine you are holding an object in your hand with your forearm horizontal and your upper arm vertical so your elbow creates a 90° angle. what force is exerted by the biceps muscle
In a circus an elderly performer thrills the crowd by catching a canon ball shot at him. what is his recoil velocity
A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. (a) How much energy was lost in the collision? (b) Calculate the average force exerted on ..
An aluminum clock pendulum having a period of 1.80 s keeps perfect time at 20.0°C. How much time will it gain or lose every hour
Density-Gravity Problem: a) Planet Vulcan has twice the mass of Earth and the same radius. What are its volume, density and surface gravity compared to Earth?
An emf is induced in a conducting loop of wire 1.19 m long as its shape is changed from square to circular. Find the average magnitude of the induced emf if the change in shape occurs in 4.18 s, and the local 0.116 T magnetic field is perpendicular t..
Ocean waves pass through two small openings, 21 m apart, in a breakwater. You're in a boat 76 m from the breakwater and initially midway between the openings, What is the wavelength of the ocean waves
A fruit fly 2.16 mm long is examined with a simple magnifier. What is the focal length of the magnifier
An AC generator supplies 315 V peak voltage at 260 Hz frequency. How much power is dissipated in a resistor with R = 185 ? resistance connected to the generator
shows a particle with positive charge q = 1.60 x 10-19 C is moving with speed v = 8.43 x 104 m/s toward a long straight wire with current i = 371 mA. find the magnitude of the force on the particle due to the current
An ancient bone contains 55.5% as much Carbon 14 as a piece of living matter with an equal carbon content. How old is the bone
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?
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