A radioactive sample has a half-life of 10 min. What fraction of the sample is left after 40 min?
A) 1/2
B) 1/4
C) 1/8
D) 1/16
D
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The south celestial pole is located at a declination of -90 degrees
Indicate whether the statement is true or false
______ refers to large and complex collections of information from a variety of sources, including website statistics, e-commerce transactions, and social media profiles.
A. Digital footprint B. Information overload C. Big data D. PII
Which sugar is a chemically bonded combination of two other sugars?
a. Sucrose b. Lactose c. Glucose d. Fructose
Potential of Point-Charges: Two 3.0 ?C charges lie on the x-axis, one at the origin and the other at 2.0 m. What is the potential (relative to infinity) due to these charges at a point at 6.0 m on the x-axis? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 11,000 V B. 9000 V C. 14,000 V D. 3400 V