Which is the greater amount for medication measured by mass?
A) 1 gram
B) 1000 milligrams
C) both the same
Answer: C
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An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. The narrow section is 10.0 m from the wide section and the narrow section is higher than the wide section. The velocity of the fluid in the wide section of the pipe is 4.00 m/s and the velocity of the fluid in the narrow section of pipe is 9.00 m/s. The pressure of the fluid in the wide section is 250 kPa. What is the pressure in the narrow section of the pipe? (density of the fluid is 1000 
A. 169 kPa B. 175 kPa C. 180 kPa D. 193 kPa E. 205 kPa
The wavelength of an electromagnetic wave is 600 nm. What is its frequency?
A) 200 × 1012 Hz B) 300 × 1012 Hz C) 400 × 1012 Hz D) 500 × 1012 Hz E) 600 × 1012 Hz
Which of the following is not a piece of evidence supporting the idea that an impact caused the mass extinction that occurred 65 million years ago?
A) Fossilized dinosaur bones contain fragments of rock from the impact. B) Unusually large abundances of iridium and other rare metals are found in a layer of clay that dates to 65 million years ago. C) A large impact crater along the coast of Mexico dates to 65 million years ago. D) Grains of quartz formed under high pressure are found in a layer of clay that dates to 65 million years ago.
The person who first explained the photoelectric effect was
a. Max Planck. b. Albert Einstein. c. Neils Bohr. d. Erwin Schrödinger. e. Werner Heisenberg.