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A concave mirror has a radius of curvature of 40 centimeter. An object is located 10 centimeter in front of the mirror. Find what are the image distance and magnification?
On planet Zog, Mr. Spock measures that it takes 1.38 s for a mass of 0.30 kg to hit the ground when released from rest from a height of 2.85 m
A disk-shaped merry-go-round of radius2.63 m and mass 135 kg rotates freely with an angualr speed of .621rev/s. What is the final angular speed of the merry-go-round
The energy of the 2s state of some element is -5.691eV. Compute the value of Zeff for this state. The energy of the 4s state of some element is-4.339 eV. Compute the value of Zeff for this state.
A 1.00 multiplied by 103-kg Toyota collides into the rear end of a 2.2 multiplied by 103 kg Cadillac stopped at a red light. The bumpers lock, the brakes are locked.
If the height of the water slide is h = 3.2m, and the person's initial speed at point A is 0.54m/s, what is the newhorizontal distance between the base of the slide and thesplashdown point of the person?
When 22.9 J was added as heat to a particular ideal gas, the volume of the gas changed from 54.3 cm3 to 100 cm3 while the pressure remained at 1.00 atm. By how much did the internal energy of the gas increase
two forces F1 and F2 act a body of mass m on.If m=5.0 kg,F1=3.0 N and F2=4.0 N find the vector of acceleration of the body
A Carnot engine extracts 550 J of heat from a high-temperature reservoir during each cycle, compute the efficiency of the engine
A gyroscope consists of a solid disk of radius R= 10cm, mounted in the center of a shaft whose length L= 32cm. One end of the shaft is mounted in a frictionless pivot, and the other end is free; the shaft has negligible mass. The disk has a mass M= 8..
An electron and a positron have masses of 9.11 10-31 kg. They collide and both vanish, with only electromagnetic radiation appearing after the collision. determine the energy of the electromagnetic radiation
A water pipe narrows from a radius of r1 = 4.33 cm to a radius of r2 = 3.39 cm. what is the speed of the water in the narrower part
The output voltage of an AC source is given by ?v = 120 sin 26.0pt, where ?v is in volts and t is in seconds. Find the frequency of the source
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