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An automobile of mass 1000 kilogram moves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kilogram. Evaluate the total momentum after the collision?
Blaise Pascal duplicated Torricelli's barometer using a red Bordeaux wine of density 950 kg/m3 as the working liquid What was the height h of the wine column for normal atmospheric pressure
A spring hanging from the ceiling has an unstretched length of 80 cm. What is the amplitude of the resulting oscillation
The maximum possible efficiency of a heat engine which exhaust its heat at a temperature of 42.0o is 44.0 percent. What is the minimum value of the temperature
a bicycle has wheels with a diameter of 0.680 m. it accelerates uniformly and the rate of rotation of its wheels
You apply a constant force F? =(?68.0N)i^+(36.0N)j^ to a 400kg car as the car travels 47.0m in a direction, How much work does the force you apply do on the car
what is the minimum coating thickness that will minimize the reflection at the wavelength of 704 where solar cells are
A man normally consumes 8.4 MJ of food energy per day. He then begins running a distance of 9four times per week. how much more food energy should he consume daily in order to maintain constant weight
A spaceship approaching Earth at 0.70 c fires a particle beam toward Earth, with speed 0.76 c relative to the ship
a portable classroom is heated with small propane heating units with a capacity of 3 kw each. the portable classroom is
Two protons (each with rest mass M=1.67×10?27kg) are initially moving with equal speeds in opposite directions. What is the kinetic energy of each proton
A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, compute the linear momentum of the electron
why is it far less dangerous to stand in front of an intense beam of red light than in front of a very low-intensity
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