Determine the power needed for the heater

Assignment Help Civil Engineering
Reference no: EM13319199

A cattle watering has a free surface with a size equal to 0.6 m x 0.3m, with the longer side being parallel to the prevailing wind. Wind at -23 C is blowing over the surface at 1 m/s. A electrical heating element maintains the water surface AND interior temperatures at 10C.
Find the power needed for the heater. Assume that the bottom and sides of the container are perfectly insulated, the evaporative cooling is small, and water surface is level with the container top edge.

Reference no: EM13319199

Questions Cloud

Determine the work developed of air flowing through turbine : Neglecting kinetic and potential energy changes and assuming the ideal gas model determine the work developed of air flowing through the turbine
Consider a perfectly competitive market with an upward : Consider a perfectly competitive market with an upward sloping market supply curve. Explain the effects of a decrease in supply for the equilibrium price and quantity as well as the total amount of spending. How does the answer depend on the nature o..
Determine the vertical force p exerted by the tower on pin a : a transmission tower is held my three guy wires attached to a pin at A and anchored by bolts b c and d if the tension in wire ab is 3.6 kn determine the vertical force p exerted by the tower on the pin at A
State rank the oxidation number for nitrogen : Rank the following nitrogen compounds in order of decreasing oxidation number for nitrogen. Rank from highest to lowest oxidation states. N2,NO2,NO2-,NH3,NO^-3,NO
Determine the power needed for the heater : A cattle watering has a free surface with a size equal to 0.6 m x 0.3m, with the longer side being parallel to the prevailing wind. Wind at -23 C is blowing over the surface at 1 m/s.
What would determine whether a student would choose to be : Now suppose their school opens up a market for loanable funds in which students can borrow and lend among themselves at an interest rate r. What would determine whether a student would choose to be a lender or a borrower in this market?
Explain the vmax and the km of an enzyme : When the Vmax and the Km of an enzyme are not known, it is essential to determine the enzyme's initial velocity (Vo) at different [S]. To determine the initial velocity, one would have to: Select one: a. Use the Michaelis Menten equation
What volume of the blue block : The red block in the %u201CSame Volume%u201D floats in water. what volume of the blue block would float above the water line if the blue block was placed on top of the red block in the water
An economy is faced by exhaustion of an important natural : An economy is faced by exhaustion of an important natural resource at a time when it is introducing improved technology.explain how these events will effect the economy production possibility curve.

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine the increase in diameter caused by applied force

A cast brass rod 60mm in diameter and 150mm long is compressed axially by a uniformly distributed force of 200kN. Determine the increase in diameter caused by the applied force, E=85GPa; poisson's rato=.30

  Find the weight per lineal foot for a normal weight of beam

the unit weight of normal weight reinforced concrete is commonly assumed to be 150 lb/ft cubed. find the weight per lineal foot (lb/ft) for a normal weight reinforced concrete beam that: a. has a rectangular cross section 16 in.

  What is the maximum diameter that the rod can have

Under the right conditions, it is possible, due to surface tension, to have metal objects float on water. Consider placing a short length of a small diameter steel (sp. wt. =460 lb/ft^3) rod on a surface of water.

  Determine the constants sigma0 and k in the hall petch

determine the constants sigma0 and k in the Hall petch equation of 70-30 brass sample.

  Find the final temperature and the amount of work

Air can be assumed as a di-atomic ideal gas. Find the final temperature and the amount of work ( in kW) required for air compression at a rate of 100 mol/s , from an initial condition of 1 bar an 25 C to 10 bar; for the following ways.

  Find what is the concentration of pepper in mg per l

one gram of pepper is placed into a 100 mL beaker, and the beaker is filled with water to the 100 mL mark. What is the concentration of pepper in mg/L. What should one assume in this problem

  What is the maximum grade the vehicle could ascend

the engine develops a maximum torque of 210ft-lb at 3600 rev/min. what is the maximum grade this vehicle could ascend, on a paved surface, while the engine is developing maximum torque (assume that the available tractive effort is the engine-gener..

  Determine what was the major principal stress at failure

A consolidated-drained triaxial test on a normally consolidated clay yielded a friction angle of 28°. If the all-round confining pressure during the test was 140 kN/m2, what was the major principal stress at failure.

  Determine the final maxture dry bulb temperature

one atmospheric air stream at 15 c and 30 percent relative humidity is mixednadiabatically with another air stream at 30c and 70 percent relative humidity in a steady flow process

  Find coefficient of kinetic friction if car comes to stop

A classic car is d riving down an incline at 60 km / h when its brakes are applied. Treating the car as a particle, neglecting all forces except gravity and friction, and assuming that the tires slip

  What should be the design capacity of the distribution pipes

A water supply system is being designed to serve a population of 200,000 people with an average per-capita demand of 600L/Person-day (peak demand factor is 1.8) and a needed fire flow of 28,000 L/min.

  Find what input of power rating is required for the pump

The average rate of water consumption from this tank is 6.25 kL per day, every day. The farmer refills the tank (overnight) every 14 days, using a pump that takes water from a nearby river. The top of the tank is 53m (vertically) above the level o..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd