Calculate the temperature of air after throttling
Air at 300 K and 200 kPa is throttled by a valve to pressure of 100 kPa. If the valve is adiabatic and the change in kinetic energy is negligible, calculate the temperature of air after throttling.
Expected delivery within 24 Hours
A dolphin in 25°C sea water emits a sound directly toward the bottom of the ocean 105 m below. How much time passes before it hears an echo? (The speed of sound in sea water is 1530 m/s.)
If the boy has three bricks weighing 10 lb each and throws them with a horizontal velocity of 10 ft/s relative to the wagon, determine the velocity he attains (a) if he throws the bricks one at a time and (b) if he throws them all at once.
Perform a hypothesis test to see if there is significant evidence to conclude that there is an interaction between the grow-light and the plant food used? Perform a hypothesis test to see if there is no difference between the effects of plant foods
Describe the metallic bonding present in aluminium and explain why aluminium has a higher melting point Why does aluminum have a higher melting point than sodium?
The brakes of a truck cause it to slow down by applying a retarding force of 3.40 x 103 N to the truck over a distance of 920 m. What is the magnitude of the work done by this force on the truck? Is the work positive or negative? Why?
A heat pump is executed with R-134a under the saturation dome between the pressure limits of 1.6 MPa and 0.2 MPa. If the power consumption of the heat pump is 4.2 kW.
The mineral is pyroxene.1. recalculate the analysis into chemical formula.The formula should show the atoms of each element in a formula that has 6 oxygen atoms.A) start with the column showing the weight percent elements.
The charges repel each other so that the angle between each string and the vertical is 30? Find the charge on each ball, assuming they are equal.
1948061
Questions Asked
3,689
Active Tutors
1418913
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think
Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.
Problem 1: Identify a specific theory of cognitive or moral development, and summarize the major assumptions.
Examine historical literature to the most current period to see the growth of romanticism and EXISTENTIALISM. any major developments
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
Amanda said? Excellent post, Chrystal. You provided great insight into the helpful resource ERIC digital library is. I appreciate how it states the information