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A copper pot with a mass of 0.485kg contains 0.175kg of water, and both are at a temperature of 20.0?C. A 0.250kg block of iron at 83.5?C is dropped into the pot.
Find the final temperature of the system, assuming no heat loss to the surroundings.
An object falls from a height h from rest. If it travels a fraction of the total height of 0.6995 in the last 1.00 s, Find the height of its fall
A spring with spring constant of 29 N/m is stretched 0.21 m from its equilibrium position. How much work must be done to stretch it
A ship is floating on a lake. Its hold is the interior space beneath its deck; the hold is empty and is open to the atmosphere. What volume of water per second leaks into the ship
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 2.70 multiply.gif 10-28 kg, what is the speed of the heavier fragment
The space shuttle performs a retro burn for 3.5min to go from an orbital velocity of 17,500mph to re-entry velocity of 5000mph.
A visual inspection of an insect with mass 0.4mg (milligrams) suggest that its uncertainty in postion is 0.5um, How fast could the insect be moving
A small object with mass 0.200 kg moves with constant speed in a vertical circle of radius 0.500 m. It takes the object0.150 s to complete one revolution, What is the translational speed of the object
A beam of 6 MeV alpha particles scatters from a thin gold foil. What is the ratio of the number of alpha particles scattered to angles greater than 1° to the number scattered to angles greater than 3°
A tennis ball rolls off the edge of a tabletop 0.500m above the floor, Find the direction of the velocity of the ball just before it strikes the floor
Young's modulus of nylon is 3.7 × 109 N/m2. A force of 6.0 × 105 N is applied to a 1.5-m length of nylon of cross sectional area 0.25 m squared
A continuous line of charge lies along an x axis, extending from x = +x0 to positive infinity. The line carries charge with the uniform linear charge density λ0. What are the magnitude and direction of the electric field at the origin.
A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle
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