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Logarithmic Decrement. Assume the damping for the mass-springdamper system in the previous problem is unknown. If the amplitude decreases by 80% every five oscillations, what is the viscous damping coefficient?
A firehose 15 m long is uncoiled by pulling the nozzle end horizontally along a frictionless surface at the steady speed of 2.9 m/s. How much work has been done on the hose
How much momentum does the truck have just before hitting the tree? What is the average force applied by the tree? What is the total momentum of the two billion people?
A 40-mH ideal inductor is connected in series with a 68-Ω resistor through an ideal 16-V DC power supply and an open switch. If the switch is closed at time t = 0 s, what is the current 7.0 ms later
You are moving due North on your tricycle with a velocity(0,20m/s). You aee a fellow tricyclist moving with relativevelocity 15m/s at an angle of 150 degrees. what is your velocity right after the collision
The Hubble Space Telescope orbits the Earth at an altitude of approximately 612 km. Its mass is 11,100 kg, What is the Hubble's total energy
a slide projector needs to create a 98-cm-high image of a 2.0 cm slide. the screen is 300 cm from the slide. what focal
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 52.5 kg and air resistance exerts a total upward force of 610 N on her and her parachute.
What is the strength of the central magnetic field? What current would have to flow through a single loop of wire of the same radius to produce the same magnetic field?
Find the force
What is the maximum distance we can shoot a dart, from ground level, provided our toy dart gun gives a maximum initial velocity of 2.78 m/s and air resistance is negligible
How long will the pebble take to slip on the disk surface? How many revolutions will the disk have rotated through at thattime?
A spherical balloon with a 35.0 cm diameter is filled with helium gas. The average kinetic energy of the helium atoms is 8.00 x 10-21 J. What is the total mass of the helium
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