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An automobile suspension involves both leaf springs with stiffness k and shock absorbers resist motion with a force -uv. The system is critically damped. If a car has mass 2000 kg and has shock absorbers with u = 2.5 x10^4 kg/s, how much should the car sink if a man with mass 80 kg stands on it?
An alpha particle (charge 2e) is sent at high speed toward a gold nucleus. The electric force acting on alpha particle is 91 N when it's 2.00 x 10^(exponent)-14m away from the gold nucleus What is the charge on gold nucleus, as a whole number mult..
A unit of area, often used in measuring land areas, is the "hectare", defined as 104m2. An open-pit coal mine consumes 66hectares of land, down to a depth of 23m, each year. What volume of earth, in cubic kilometers, is removed in this time.
the electric field midway between two equal but opposite point charges is 747 nc and the distance between the charges
A collision between two protons produces three new particles: p + p --->p + + + 0 + 0. The rest energies of the new particles are + (139.6 MeV), 0 (1116 MeV), 0 (497.7 MeV). Note that one proton disappears during the reaction. How much of the protons..
Compute the rms speed of a nitrogen molecule at 12.0°C and At what temperature will the rms speed be half that value
An astronaut travels to the nearest start system. 10 light years away, and returns at a speed of 0.5c. How much has the astronaut aged relative to those people remaining on Earth?
A thin, hollow 60.0 g section of pipe of radius 10.0 cm starts rolling (from rest) down a23.5° incline 5.40 m long. If the pipe rolls without slipping, what will beits speed at the base of the incline
q1. a stone is dropped into a deep canyon and is heard to strike the base 6.8 s after release. how deep is the canyon?
What's the quickest way to approach this problem? A car is traveling at 80 km/h along the highway. How long does it take for the second car to pass the first
The tire on a bicycle is filled with air to a gauge pressure of 691 kPa at 20?C. What is the gauge pressure in the tire after a ride on a hot day when the tire air temperature is 48?C?
The ball rebounds straight upward to a height of 0.700 m. Illustrate what are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor?
On vacation, your 1250 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.75 m/s2. What is the net force exerted on the trailer
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