A 650-kg roller coaster car starts from rest at the top of the first hill at height 26m and rolls down the frictionless track and passes through second hill at height 16m, third hill at height 9m and reach end of ride. Calculate the gravitational potential energy at the top of first, second, and third …
Fluid, Electrolyte and Acid-Base Homeostasis:Ms. Brown is a 70-year-old woman with type 2 diabetes mellitus who has been too ill to get out of bed for 2 days. She has had a severe cough and has been unable to eat or drink during this time. On admission, her laboratory values show the following: Serum glucose …
Describe the principles behind Einstein’s theory of relativity and provide examples of how it has been experimentally
Magnetism – A Virtual PhET Lab After completing this lab activity, the students should be able to: Conduct an experiment to determine the magnetic field generated by a current-carrying wire loop Calculate the magnetic field generated by a current-carrying wire loop Write a lab report Lab Report The lab report must include the following: …
High-voltage power is often carried in wire bundles made up of individual strands. In your initial post to the discussion, discuss the forces on the strands of wire due to the current flowing through them. What would happen if the force acted the opposite of the known behavior? Provide a detailed description.
Consider a piston-cylinder assembly in which a gas undergoes a cycle consisting of the following three processes Process 1-2: constant pressure, P= 1.4 bar, aL1 = 0.058 m3, W12 = 7.5 Id Process 2-3: Compression with PV= constant, U3 = U2 Process 3-1: Constant volume, U1 -U3 = -12.6 Id Neglect changes in kinetic or …
A gas in a piston-cylinder assembly undergoes a process during which the pressure-specific volume is related as PV’ 3 = Constant. The mass of the gas is 0.5 Ibm; the Initial pressure is 170 psia, volume is 1.2 ft3. The final pressure is 420 psia. There is a heat transfer from the gas of 4.1 …
Air is contained in a vertical piston-cylinder assembly by a piston with a 4-in diameter and a weight of 300 lb,. The atmospheric pressure is 14.7 psia on top of the piston. A total of 4.13 Btu of energy as heat is transferred to the air and the piston rises at constant pressure resulting in …
The outer surface of the grill hood shown in the figure below is at 47°C and the emissivity is 0.93. The heat transfer coefficient for convection between the hood and the surroundings at 27°C is 10 W/m2K. Determine the net rate of heat transfer between the grill hood and the surroundings by convection and radiation, …
Air undergoes a process from an initial state 14.7 psia and 1000 in3 to a final state where 60 psia, and 320 in3. The relationship between pressure and volume during the process is pV” = constant. Determine the value of the constant n and calculate the work, in Btu. (Hint: watch “work determination”).
