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What does the equation E = mc2 mean? Please show your work and write (preferably type) legibly.
A hockey player hits a punk so that it comes to rest in 9s after sliding 30 m on the ice. Determine (a) the initial velocity of the punk, (b) the coefficient of friction between the punk and the ice.
When the displacement of a mass on a spring is 0.689 of the amplitude of its oscillation, what fraction of the mass's energy is kinetic energy
An electrically charged bullet of mass 0.010 kg leaves thebarrel of a gun traveling parallel to the ground and perpendicularto the Earth's magnetic field at 1.400e+3 m/s. Intheory, what charge could the bullet carry in order to remain at aconstant he..
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.40 m from the grating, What is the difference between these wavelengths
The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides, Calculate the current I.
According to Bohr, what is happening in the atom when a photon of light is emitted and what is happening in the atom when a photon of light is absorbed?
a carnot engine operates with an efficiency of 23.0 when the temperature of its cold reservoir is 274 k. assuming that
A telephone cord is 3.85 m long and has a mass of 0.190 kg. A transverse pulse is produced with plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.740 s. What is the tension in the cord?
A plane in still air would be traveling at 100 m/s at 50degree N of E. The wind blows 12 m/s W. What is the actual speed of the plane
The catapult on an aircraft carrier can take an aircraft from 0 to 197 mph in 8 seconds, at which timethe aircraft launches. Express the launch speed in SI units (meter-kilogram-second (MKS) system - not km/hr).
In this problem, you will work through making sense of the thermodynamic quantities of entropy (S), internal energy (Uint), enthalpy (H), and Gibbs free energy (G) in a simple toy model in which you can actually calculate everything explicitly: th..
The coefficient of friction between the cart and the horizontal track is μk = 0.20. The pulley does not spin as the string passes over it. If the cart and mass are released from rest, you want to find the speed of the two objects immediately befor..
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