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The mass of a car that acts on one wheel is 100 kg. The elasticity (spring) constant in the suspension system of that wheel is k = 104N/m. Design the strut (find the friction/resistence constant c) such that any vertical motion of the wheel (set up for example by going over a bump or pothole on the road) will die out in the shortest amount of time.
a motorcycle is following a car that is traveling at constant speed on a straight highway. initially the car and the
When a mass m is hung a spring the spring stretched 6.0cm. What is the period of vibration if it is then pulled down a little and released
A man working out in a gym has a metabolic rate of 2500 kJ/h. His body temperature is 37°C, Find at what rate is energy eliminated by evaporation from the lungs
The lows note emitted by stretched string has a frequency of 50Hz.how many outcome are possible between 40Hz and 170Hz.
A mechanic jacks a car up to an angle of 6.0 degree to change the front tires. The car is 2.9 meter long and has a mass of1130 kilogram. Find the torque exerted by the car around the back wheels
A person pushes a 16-kg lawn mower at constand speed with a force F= 80N directed along the handle, which is at an angle of 45 degrees to the horizontal. Calculate the magnitude of the Normal force exerted on the mower.
In creating his definition of horsepower, James Watt, the inventor of the steam engine, calculated the power output of a horse operating a mill to grind grain or cut wood.
A 5.000kg mass starts from rest and slides down on an inclined plane, hits a bumper at the bottom of the inclined plane and bounces back up the inclined plane and comes to rest again. Through the collision with the bumper, 0.700J of energy is lost.
Two 13 Ohm resistors connected in parallel are then connected in series to a 10 Ohm resistor. The entire setup is connected to a 9 V battery. What is the current through the 10 Ohm resistor
An astronaut on a distant planet notices that it takes 8 seconds for an object to drop 32 meters beginning from a resting position. Determine the magnitude of the acceleration due to gravity on the planet.
A 450 Newton rightward force is used to drag a large box across the floor with a constant velocity of 0.678 m/s. the coefficient of friction between the box snd thr floor is 0.795. Determine the mass of the box
A textbook of mass 2.10 rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.180 , to a hanging book with mass 2.92. find the mmoent of inertia of the pulley about its rotation axis
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