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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?
An ice skater slides (without pushing) across a frozen pond for 25.0 m before coming to a stop. If the coefficient of kinetic friction is 0.050, how fast was the skater initially moving
What is the moment of inertia of flywheel
A spacecraft is in orbit around a planet. The radius of the orbit is 3.1 times the radius of the planet (which is R = 71455 km). What is the period of the spacecraft's orbit
John is sitting ( at rest) at the top of a slide that is inclined 25 deg with respect to the horizontal. how much does the thermal energy increase during John's trip down the slide
A proton with a speed of 2.5 × 106 m/s is shot into a region between two plates that are separated by a distance of 0.16 m. What must be the magnitude of the magnetic field
assuming the acceleration is constant throughout each time interval (but not necessarily the same in both intervals), what distance does the shuttle travel during the interval from 7.00 s to 1.00 min.
State the direction as an angle with respect to the +x axis.
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. How high was the plane when the decoy was released
An advertisement claims that a centrifuge takes up only 0.127m of bench space but can produce a radial acceleration of 3000g at 5000 rev/min. Calculate the required radius of the centrifuge
q1. a student who weighs 510 n is wearing a backpack that weighs 70 n. the student is standing still on a level ground.
A uniform steel bar swings from a pivot at one end with a period of 1.3s. How long is the bar
If the rms electric field of this light is 16.0N/C at a distance of 1.30m from the bulb, what is the average total power radiated by the bulb
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