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A wheel that is rotating at 33.3 rad/s is given an angular acceleration of 2.15 rad/s/s. Through what angle has the wheel turned when its angular speed.
What will be the maximum kinetic energy (in eV) with which this same radiation ejects electrons from another metal whose work function is 2.01 eV?
Under what conditions would kinetic energy not be conserved? Explain each response and back up your response using principles of physics.
Erlenmeyer flask contains 0.25g Zn then add 10 mL 6M of HCl then when it cools back down to 21 degrees Celsius connect it to a Gas piston
When pressure is applied to a liquid, its volume decreases. Assuming that the isothermal compressibility is independent of pressure, derive an expression
Air initially at 100 psia, 500 F undergoes an internally reversible process to 45 psia. For each of the following cases, determine for 10 lbm of air
In a single acting two-stage reciprocating air compressor. 6 kg of air per minute is compressed from 1.013 bar and 17 °C to 10 bar.
If Ms. takes a running start so that she is moving at 2.40 m/s at the bottom of the ramp, what is her speed when she reaches the top of the incline?
Process 1 requires 600 joules added, process 2 requires 200 J added. What is the change in internal energy as a result of the first two processes?
Explain this in some detail with some pictures/diagrams to show and explain the TTT diagram concept
One-gram molecule of a gas expands isothermally to four times its volume. Calculate the change in entropy in terms of the gas constant.
A 50-kg sled is pulled 20 meters over ice at a constant speed. The coefficient of friction between the sled and the ice is 0.13.
2 forces parallel to the X axis do 14.7 Joules of work on a small tray while moving it 20.7 meters in the X direction across a gym floor.
A little red wagon with a mass of 4.60 kg moves in a straight line on a frictionless horizontal surface. It has an initial speed of 10.0m/s.
Two reversible heat engines X and Y are arranged in series. The engine X rejected heat directly to Y. Engine X receives 400 KJ of heat at 427 degrees centigrade
Two point charges are arranged along the x axis as shown the figure. At which of the following values of x is the electric potential equal to zero?
Calculate the density of NO2 gas at 0.970 atm and 35 degrees Celsius.
What are the first and second laws of thermodynamics? How do these laws affect ecosystems?
You are supplied with a 1.87% concentration (by weight) hydrogen peroxide solution. Assume the density of your solution is 1.00 g/mL.
A block with a mass m is pulled along a horizontal surface for a distance +x by a constant force F at an angle theta with respect to the horizontal.
Steam enters a turbine with a velocity of 20 ms-1, a pressure of 3 bar, internal energy of 3500 kJ kg-1 and density of 1.7 kg ms-3.
A 230 N sphere 0.20 m in radius rolls, without slipping 6.0 m down a ramp that is inclined at 28° with the horizontal.
Air enters a steady-flow compressor with a specific enthalpy of 293.4 kJ/kg and a velocity of 60m/s, and leaves with a specific enthalpy of 343 kJ/kg
A home builder installs electric baseboard heat and claims, "It is the cheapest and cleanest way to go."
"Energy can be converted to one form or another, but cannot be created or destroyed." This the theory of: