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If the velocity of an object in linear motion is given in terms of clock reading by the formula v=(15 m/s2)t-(7 m/s3)t2, determine the object acceleration at t=0.50 second. If the object was at the origin at t=0, evaluate its position at t=0.50 second.
A vertical scale on a spring balance reads from 0 to 150 N. The scale has a length of 11.0 cm from the 0 to 150 N reading. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.60 Hz. Ignoring the mass of the spring, ..
A circular rod of length 25cm and diameter 8mm is made of 1045grade steel. (a) calculate the stress and strain in the rod, and its extension, when it is subjected to 5kN of tension.
A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, Find the magnitude and direction of the total vector force exerted on driver if the speed is 24.0 m/s instead
two charged dust particles exert a force of 7.3times10-2n on each other. what will be the force if they are moved so
A stone is dropped into a deep canyon and is heard tostrike the bottom 10.2 seconds after it is released. How deep is the canyon
A certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.8 × 10-11 s. How many wavelengths are there in one pulse
a block is moving down a hill at rest with height of h then it go on a loop, with r=0.5, if the block can comeplete this loop. What is the least height of the hill
A Light-Dimmer Circuit The intensity of a lightbulb with a resistance of 140 Ohms is controlled by connecting it in series with an inductor whose inductance can be varied from L=0 to L=Lmax. What is the average power dissipated in the lightbulb whe..
A hole of radius R/2 is cut from a think circular plate of radius R. The mass of remaining plate is M. Find the moment of inertia of the plate
A fighter jet lands on the deck of an aircraft carrier. It touches down with a speed of 70.4 m/s and comes to a complete stop over a distance of 197.4 m, What is the acceleration of the jet
A skier is gliding along at 5.0 on horizontal, frictionless snow. He suddenly starts down a 10incline. His speed at the bottom is 15. how long does it take him to reach the bottom
The coyote starts 42.0 m from the brink of a cliff. The roadrunner zips past him at a speed of 18.0 m/s. What is the acceleration of the coyote
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