Why the numbers of alpha particles are emitted
Radium-226, which undergoes the alpha decay, has a half-life of 1600yr. 1. Determine the numbers of alpha particles are emitted in the 1.9 min by a 6.3-mg sample of 226Ra? 2. Determine the activity of the sample in Ci?
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One plane flies 25mph faster than other. Determine airspeed of each plane if cities are 275 miles apart and planes pass each other after 40 minutes of flying time.
Determine the emf under actual operating conditions when the partial pressure of the oxygen is 0.21 atm.
Suppose the temperature is 25degrees Celsius and a partial pressure of oxygen is the 0.21 atm. If a current of 2.1 * 10^5 A is to be drawn from a zinc-air system, what volume of the air would require to be supplied to the battery every second?
In a study of length of time that studnets need to earn bachelor degrees, 80 students ar erandomly selected adn they are found to have a mean of 4.8 years an standard deviation of 2.2 years. Develop a 95% confidence interval for population mean ti
Radium-226, which undergoes the alpha decay, has a half-life of 1600yr. Determine the numbers of alpha particles are emitted in the 1.9 min by a 6.3-mg sample of 226Ra?
A gaseous compound containing hydrogen and carbon was analyzed and found to consist of the 83.65% carbon by mass. At 139 degrees C and 1.00 atm, when the density of this compound is 2.55g/L then how can find the molar mass of the compunds?
Randomly chose statistics students of mr johnson partcipcated in experiment to test their capabilltiy to estimate when 1min or 60 second has passed. 40 students yielded sample mean of 58.3 sec as well as a stnadard devaition of 9.5 sec. at the 5%
Estimate the heat of formation of sucrose, knowing that the heat of combustion is -5645 KJ/mol. How can write the equation for the combustion of sucrose?
From production line of manufatoring process 400 items are inspected after random selection. It was found that 28 of the items were defective. It is assumed that 10% of the items are defective.
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When children are able to determine that the same amount of liquid is in two different sized containers, they have mastered
What is one specific way in which behavior modification techniques might be used in this field? What would be the end goal when using these techniques?
The range of tasks that are too difficult for the child to master alone but that can be learned with the guidance and assistance of adults
My name is Lisette (preferred) and I am located in Augusta, GA. I am majoring in Psychology (BS) with the Life Sciences option, I currently am a manager
Analyze the factors that contribute to employee motivation, satisfaction and engagement. Discuss how employee stress and low motivation can be influenced
Problem: Identify and explain the main ethical challenges faced by Iverem.
Problem: This video talked about personal bias and outdated facts that confuse the general population.