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Question: A phone cord is 3.08 m long. The cord hasa mass of 0.193 kg. A transverse wave pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.807 s.
What is the tension in the cord?
An artificial satellite is in a circular orbit around a planet of radius r = 5.55 x 103 km at a distance d=520km from the planet's surface. What is the average density of the planet
a balloon rubbed against denim gains a charge of -8.0 microc. whats the electric force between the balloon and the
A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 13.0 m/s, What is his final velocity
A wheel has a rotational velocity of 20·rad/s clockwise. You place you hand against the wheel and the friction between your hand and the rim stops it. How far does the wheel rotate while slowing to a stop
A low friction cart of mass m, traveling at speed v, collides (perfectly) elastically with a cart of triple the mass, initially at rest. What is the result of this collision
Suzie (30 kg) is roller-blading down the sidewalk going 24 miles per hour. What is Suzie's average acceleration
A 300-g block is dropped onto a vertical spring with spring constant k =180.0 N/m. The block becomes attached to the spring, what is the maximum compression of the spring
A jogger's internal energy changes because he performs 6.10 105 J of work and gives off 4.9 multiplied by 105 J of heat. Determine the magnitude of the heat given off while walking
By doing a nuclear diffraction experiement, you measure the de Broglie wavelength of a proton to be 9.16 fm. (a) What is the speed of the proton? (b) Through what potential difference must it be accelerated to achieve that speed?
Two waves of the same frequency have amplitudes 1.31 and 2.94. What is the resultant amplitude
A 250, 35-cm-diameter turntable rotates on frictionless bearings at 60. A 25 block sits at the center of the turntable. A compressed spring shoots the block thoroughly outward next to a frictionless groove in the surface of the turntable.
If the piston has a cross sectional area of 0.0100 m^2 and negligible mass, how high would it rise when the temperature is raised to 250°C.
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