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Two masses undergo a front-to-back collision. The mass m has aninitial velocity 2v0, and the mass 2m has an initial velocity v0.After the collision, they stick together, forming a compound system. What is the final kinetic energy of the compound system?When the initial kinetic energy is 3mv0^2.
A 12 V battery causes a current of 0.7A through a resistor. How many joules of energy does the battery lose in a minute
A spherical steel ball bearing has a diameter of 2.540 cm at 26.00°C. (Assume the coefficient of linear expansion of the steel is 1.10 10-5(°C?1), and the average volume expansion coefficient is 3.30 10-5(°C?1).)
A bodybuilder configures a leg-press apparatus to a resistance of230 lb (about 1000N). She pushes the weight to her full extensionand comes to rest. A). What is her normal force on each of her feet
Sucrose is allowed to diffuse along a 12.0-cm length of tubing filled with water. What is the difference in the concentration levels of sucrose at the two ends of the tube
A charged particle of mass 8.39×10?4 kg starts from rest and accelerates through a potential difference of +25,000 V to reach a speed of 1240 m/s
A series circuit consists of a 15-%uF057 resistor, a 35-mH inductor, and a 25-%uF06DF capacitor. If the frequency is 100 Hz the power factor is
A flywheel turns through 26 rev as it slows from an angular speed of 6.3 rad/s to a stop.
Monochromatic light is incident on a diffraction grating and the first maximum is observed at an angle 5.2 degrees. At what angle is the 4th maximum seen
An oscillator with a mass of 500 g and a period of 0.50s has an amplitude that decreases by 1.0% each complete oscillation. If the initial amplitude is 20 cm, what will be the amplitude after 21 oscillations?
A solenoid 1.30m long and 2.60cm indiameter carries a current of 18.0A. The magnetic field inside thesolenoid is 23.0mT. What is the length of the wire forming the solenoid
A 6 foot person stands at the bottom of a 10ft pool filled with water. How much pressure is exerted on the person's head
A laser used to weld detached retinas emits light with a wavelength of 652{\rm nm} in pulses that are 20.0{\rm ms} in duration. What is the energy of one photon in electron volts
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