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A. How much heat transfer is nec to raise the temp of a .200kg piece of ice from -20C to 130C including the energy needed for phase changes?
B. How much time is required for each stage assuming a constant 20.0 Kj/s rate of heat transfer?
C. Make a graph of temp vs time for this process
Find the maximum altitude reached by the rocket.
A cubical box .2 m on a side is completely immersed in a fluid. The pressure at the top of the box is 105 kPA, What is the denstiy of the fluid
Question: For all generators: Eg = 1\"\"0°, χ1 = j0.25 For all transformers: χ1 = j0.75 [A] Write the Y and Z matrices. B] Write the model equation. [C] For each bus, find V, ρ and Q.
A 2.00-nF capacitor with an initial charge of 5.06 µC is discharged through a 1.28-k? resistor. What is the maximum current in the resistor
A disk of mass M and radius R is initially at rest. It is acted upon by a constant torque N for a time t. what was the minumum power rating of the motor
A 20kg box slides up a 12m long incline at an angle of 30 degrees with the horizontal. What is the change in gravitational potential energy
What is the average force felt by a 0.06 kg tennis ball if it strikes the racket at a speed of 30m/s and leaves the racket with a speed of 50m/s in the opposite direction
A 75kg hiker climbs to the top of a 4000m -high mountain. The climb is made in 5.0h starting at an elevation of 3000m. Calculate the average power output in horsepower
A 25.1-mW laser beam of diameter 2.15 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
A diverging lens (f = -11.0 cm) is located 25.0 cm to the left of a converging lens (f = 36.0 cm). What is the height of the final image
Demonstrate that gravitational energy is not extensive: show that the gravitational energy of a sphere of radius 'r' and uniform density varies with volume V^n and find the exponent 'n'.
A tungsten wire has a radius of 0.086 mm and is heated from 20.0 to 1422 oC. The temperature coefficient of resistivity is ? = 4.5, How long is the wire
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