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In an experiment 70 gram of ice at 0 degrees Celsius is dropped into 300 gram of water at 50 degrees Celsius. Assuming that the calorimeter prevents heat flow to the surroundings, what is the final temperature of thermal equilibirium? Please show work for best and first rating.
A 4.4 x 10^14 Hz laser emits a 2.1 mS pulse, 5.0 mm in diameter, Calculate the number of wavelengths in the length of the beam
The length of the road up the hill is 347 m. Illustrate what should be the magnitude of F, so that the net work done by all the forces acting on the car is 182 kJ?
A particular engine has a power output of 4.00 kW and an efficiency of 25.0%. Assume the engine expels 7000 J of energy in each cycle. Find the time required to complete each cycle
A 1200 turn coil in a dc motor has an area per turn of 1.1 * 10-2m-2. What is the current in the coil
A steel ball bearing 7.0 mm in diameter is dropped into a cylinder of glycerin. What is the terminal velocity of the ball bearing
Determine the voltage at the motor terminals - mesh analysis with one loop including the source
What is the largest wavelength that will give constructive interference at an observation point 171 from one source and 295 from the other source.
A rock is thrown vertically upward with a speed of 15.0m/s from the roof of a building that is 40.0m above the ground, What is the speed of the rock just before it strikes the ground
An elevator has a downward acceleration of 1 m/s2. A person, having a weight of 800 N as measured by a scale at rest on the ground, steps on a scale in the elevator. What does the scale read? A) 0 N. B) Approximately 80 N. C) Between 80 N and 800 ..
Calculate the hydrostatic difference in blood pressure between the brain and the foot in a person of height 1.75 m
A generator uses a coil that has 210 turns and a 0.20-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. assume that each turn of the coil is a square (an approximation), conclude the length of wire f..
Suppose 1500 J of heat are added to 5.6 mol of argon gas at a constant pressure of 120 kPa. Calculate the change in volume of the gas
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