You decide to focus on pickling cucumbers. The cucumbers that you have are all approximately 12 cm in length and 3 cm in diameter. If the diffusion coefficient for H+ ions in cucumbers is the same as in water, 7 x 10-5 cm2/sec, how long will it take for the protons to reach the center of the cucumbers? Enter your answer in minutes without including the units.
You decide to focus on pickling cucumbers. The cucumbers that you have are all approximately 12...
Approximation At some point, scientists are confronted with the recognition that some math problems do not have exact answers. This is very different than the math we learn in high school and college, which typically represents math as a construction that only has exact answers (2 + 2 = 4 and not any other number) What is the expected time of diffusion of biologically important molecules at different scales? There is no exact answer to a question like how long...
17. [12 pt] Taking MEEN 3700 has made you slightly crazy and you have therefore, decided to enter the Redbull Flugtag competition this summer in Louisville. The goal is to develop a human powered flying machine capable of the longest flight possible from a tower into a river (see figure). Besides planning to use a prodigious amount of duct tape, you have also decidesd to put your fluid dynamics knowledge to good use and develop a basic dynamics model. The...
please help me with answering all questions 4-10 thank you
?
Two/three or more component system: practice the algebra! INCLUDE ALL UNITS! 3. A sample of a metal with a mass of 212g is heated to 125.0°C and then dropped into 375g of water at 24.0°C. If the final temperature of the water is 34.2°C, what is the specific heat of the metal? (Hint: treat as 2-component system) 1pt work space: 4 water at 18.3°C. If the temperature of the...
Lab 2A:
Introduction
In this lab, you will be studying osmosis across the membrane of
potato cells. You will create equal-sized pieces of potato and then
place the pieces in solutions with differing concentrations. You
will then, over time, measure any changes that take place in the
size and weight of the potato pieces.
To measure changes in size, you will need either a gram scale
(like a food scale) or a millimetre ruler. It is best if you have...
Please try to answer all questions and show work. Thank
you.
1. A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player's hand. If we neglect air resistance, then the magnitude of the acceleration of the ball is? A. largest the moment after it leaves the players hand. B. smallgst the moment after it leaves the player's...
Question 12 pts The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take less than 6 minutes to select a shoe purchase. Is this outcome unusual? Group of answer choices Probability is 0.88, which is usual as it is greater than 5% Probability is 0.12, which is usual as it is not...
anyone can help me to solve this all problems? thank
you so much ?
11. A water tank is in the form of a sphere. It is filled with water to a depth of 30 cm. the inner diameter of the tank is 45 cm, what is the volume of water in it in liters? A.18.25 liters C 28.49 liters B. 21.61 liters D.35.34 liters 12. A rectangle ABCD is given such that AB is 5 units of measure while...
5. When all of the sample to be collected has left the
column, will the drop of solution coming off the tip of the column
be acidic, basic or neutral?
6. How many H+ ions would be displaced from the ion
exchange column by 1 Cu2+ ion?
7. Binding sites on the ion exchange resin are saturated
with which ion before the sample solution is added?
8. Ions are displaced from the resin binding sites by
any ion that has...
i have a med assignment to do. this is the background and the questions. 100% rating if all parts are answered, make sense and are relevant. i just need to make sure my answers are correct (hence why im posting it here!) BACKGROUND A 30cm length of distal small intestine, attached to a short length of colon, is surgically resected from a human patient undergoing surgery for a cancerous tumour in the right colon. The small intestine is separated from...
PLEASE SHOW ALL WORK. THANKS.
III, SIMPLE HARMONIC HECK (30 pts: 10 pts each piece), The statements immediately to follow (even when long and complicated) are considered in this context) GIVEN You may assume and rely on them for the problem/proof to follow a bit further down. Note: In some cases, "GIVEN' might mean 'self-evident' or 'obvious', but in other cases, it might not. GIVEN might not mean "obvious"; it can simply mean 'somehow established prior to this discussion'. GIVEN...