Evaluate the half life of the substance
When radioactive substance provides a counting rate of around 1250 cpm at time t = 0, and a counting rate of 475 cpm at time t = 20 minutes, determine the half life of the substance.
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A person of 88.0 kg stands on one leg and 90% of the weight is supported through the upper leg joining the knee and hip joint-the femur. Supposing the femur is 0.680 m long and consists of a radius of 1.90 cm, by how much is the bone compressed? I
The other end is given an initial horizontal velocity in such a way that the precession is smooth with no notation. (i) Determine the magnitude of the angular velocity of precession?
A Gieger counter computes 750 counts in 5.0 min. (i) Find out the average counting rate per minute and the standard deviation of the counting rate (ii) Determine the fractional error. (iii) How long would you wish for to count to get fractional er
The average counting rate of a radioactive sample is around 486 cpm. Determine the probability that in any given 10 second interval one gets less than 72 counts. Is this similar as the probability of getting less than 72 x 6 = 432 counts in about
The 8 high-capacity rats had mean blood pressure 89 with standard deviation 9; the 8 low-capacity rats had mean blood pressure 105 with standard deviation 13. (Blood pressure is measured in millimeters of mercury.)
(i) Determine the magnetic deflection force which acts on the proton in the chamber? The proton mass is around1.67*10^-27kg. (ii) Determine the radius of the path of proton?
Explain what a critical value is, and explain how it is used to test a hypothesis?
The Stars in a typical globular cluster orbit at speeds of around 10 km/s, and stars at the outskirts of a globular cluster are around 50 light-years from the center.
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
Problem: An infant with known congenital heart disease presents with weight loss, tachypnea, and hepatomegaly.
For a research topic on evaluating the access to health services for commercial sex workers as a mixed method approach provide the methodology
The healthcare provider ordered a urine culture for a client. Which item would a nurse need for a urine specimen collection from an existing indwelling
The nurse practitioner (NP) evaluates a client with complaints of a burning sensation in the chest that often occurs after meals and is exacerbated
I am writing a dissertation topic on the utility of community based interventions in post exposure support to survivors of IPV in uMzingwane district
A 12-month-old child presents with fever of 100.9, lethargy, vomiting and tachypnea. The history is significant for recent hand-foot-mouth disease infection.