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An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 2.80 multiply.gif 10-28 kg and that of the heavier fragment is1.66 multiply.gif 10-27 kg. If the lighter fragment has a speed of 0.893c after the breakup, what is the speed of the heavier fragment?
A portable 3.5 kw wate heater is immersed for 3 minutes in a plastic filled with 20 kg of water at 20C. what will be the final temperature of the mixture given specific heat of water at 4186 j/gkC.
The model airplane is flying at a speed of 23 m/s on a horizontal circle of radius 17 m. The mass of the plane is 0.96 kg. The person holding the guideline pulls it in until the radius becomes 8.0 m. The plane speeds up and tension in the guidelin..
A 57-kg water skier is being pulled by a nylon tow rope that is attached to a boat. The unstretched length of the rope is 11 m, What is the change in the length of the rope when the skier has an acceleration whose magnitude is 0.90 m/s2
Two tugs A and B pull a ship along a direction XO. Tug A exerts a force of 30kN at an angle of 15 degrees to XO, Find the angle X for the resultant force on the boat to be along XO
A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 9.00×10?3m/s2 less than that at sea level
The tension in a ligament in the human knee is approximately proportional to the extension of the ligament, What is the tension in this ligament when it is stretched by 0.67 cm
A 60 kg person drops from rest a distance of 1.20m to a platform of negligible mass supported by a stiff spring. The platform drops 6cm before the person comes to rest.
An electron is accelerated by a constant electric field of magnitude 285 N/C. a. Find the acceleration of the electron (N) b. If the string can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the string breaks.
Start with the thin lens equation and solve for the image distance in terms of the focal length and object distance. Use this to explain why you can expect a real image only
Algol consists of a 3.7 MSun main-sequence star and a 0.8 MSun subgiant. Why does this seem surprising, as a minimum at first.
How many times hotter than the Sun's surface is the surface of a star the same size, but that gives off twice the Sun's energy per second (that is, is twice as luminous)?
A 32.2 uF capacitor is connected to a 50.2 ohm resistor and a generator whose rms output is 37.2 V at 50.0 Hz. Calculate the rms current in the circuit. Calculate the phase angle for the circuit
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