Eukaryotes
A) are made of two cells fused together
B) are all unicellular
C) can be unicellular or multicellular
D) are all multicellular
C
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If you toss a ball straight upward at 40 m/s with no air resistance, one second before it reaches the top of its path its speed is
A) zero. B) 10 m/s. C) 20 m/s. D) 30 m/s E) 40 m/s.
A wire that is 1.0 mm in diameter and 3.5 m long stretches 3.5 mm when an 8.0-kg tool is hung from it
(a) What is Young's modulus for the material from this wire is made? (b) What is the effective spring constant for the stretching wire? What will be an ideal response?
A beam of light of wavelength 674 nm is incident along the normal to two closely spaced parallel glass plates. For what air gap separation between the plates will the transmitted beam be of maximum intensity? (1 nm = 10?9 m)
a. 169 nm b. 674 nm c. 337 nm d. 843 nm e. 506 nm
The condition for onset of turbulent flow is that the Reynolds Number reaches what value?
a. 1 000 b. 2 000 c. 3 000 d. 4 000