Calculate the flux
Consider a local concentration of 106 units per cm3 which drops by 10% over a distance of 1 cm. Then the gradient is -105 [units cm-4]. Assume the diffusivity is 103 [cm2/s]. Calculate the flux.
Expected delivery within 24 Hours
Chlorophyll found in plant cells and essential to the process of photosyntheses, contains 2.72% Mg by mass. Assuming one magnesium atom per chlorophyll molecule, calculate the molecular mass of chlorophyll?
Balance the following molecular equations for these reactions. Write the ionic equation for the reactions. Write the net ionic equation for the reactions.
From the damage sustained, police estimate that the car was moving at 18 at the time of the collision. They also measure skid marks 34 long. How fast was the motorist going when the brakes were first applied?
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution?
A cook wants to heat 2.00 of water from 35.0 to 100.0 .If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn? Natural gas produces 49.3 of heat per gram. (For the sake of simpl
Find maximum and minimum frequencies of sound detected by the detector, if vibration frequency of each block is 3.5Hz.(sound velocity is 330m/s).
How much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 3.5 liters against a constant external pressure of 0.0100atm? Answer in units of J.
Two air carts of mass = 0.80 and = 0.44 are placed on a frictionless track. Cart 1 is at rest initially, and has a spring bumper with a force constant of 690 . Cart 2 has a flat metal surface for a bumper, and moves toward the bumper of the statio
1926853
Questions Asked
3,689
Active Tutors
1459003
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
A 2-year-old girl is evaluated for cough, runny nose, watery eyes, and fevers for a week. She also developed a diffuse rash,
Question: Which clinical findings tend to support a diagnosis of Klinefelter syndrome?(Select all that apply.) Short arm span Gynecomastia. Scoliosis Small peni
Problem: The treatment that has been the MOST popular for restoring weight among persons with anorexia nervosa is
The nurse is caring for a client who is receiving internal radiation therapy for cervical cancer. Which of the following actions should the nurse take?
What are two ways to share the outcomes of research? Why is it important to present the results of this research to the organization in some capacity?
Problem: The nurse is teaching a client who had left cataract surgery with an intraocular lens implant.
A nurse is reinforcing teaching about exercise with a client who has type 1 diabetes mellitus. Which of the following statements by the client indicates