What is the half-life of the radiosiotope
The activity of a radioisotope is 3000 counts per minute at one time and 2736 counts per minute 48 hours later. What is the half-life of the radiosiotope.
A) 831 hr
B) 521 hr
C) 361 hr
D) 1.44 hr
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A company has a standard of 2 hours of direct labor per unit produced and $18 per hour for the labor rate. During last period, the company used 9,500 hours of direct labor at a $152,000 total cost to produce 4,000 units.
A NASA satellite showed that in 2003 the ozone hole was much larger than it was in 2002. The 2003 hole measured 1.04 X 10 7 mi2 in diameter, while the diameter of the 2002 hole was 6.9 X 106 mi2. Calculate the difference in size between the two holes
Actual fixed overhead for a company during March was $77,612. The flexible budget for fixed overhead this period is $78,000 based on a production level of 4,875 units. If the company actually produced 4,300 units, what is the fixed overhead volume
Create a 6-step procedure to make 100 mL of a 0.10 M solution of sodium chlorate, NaClO3. Also, Create a 7-step procedure you can use to determine those cation/anion pairs that produce precipitates.
A company had a $56,000 unfavorable direct material efficiency variance during a time period when the standard rate per pound of direct material was $7 and the actual rate per pound of direct material was $7.50.
How much heat is needed to convert 885 g of ice at -10°C to steam at 119°C? (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively.
A company established a direct material standard of 2 pounds of material at a cost of $6 per pound for unit produced. During August the company produced 6,000 units of product.
The half-life for the first order conversion of cyclobutane to ethylene
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