How much energy is in an 89.7 MHz photon of FM-radiation?
a. 2.2 × 10^-33 J
b. 9.5 × 10^-27 J
c. 7.4 × 10^-42 J
d. 5.9 × 10^-26 J
e. 3.7 × 10^-25 J
D
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The maximum acceleration a pilot can stand without blacking out is about 7.0 g. In an endurance test for a jet plane's pilot, what is the maximum speed he can tolerate if he is spun in a horizontal circle of diameter 85 m?
What will be an ideal response?
An object consists of a rod (of length 3.00 m and negligible moment of inertia) to which four small 3.50-kg masses are attached, one at each end and one at each point on the rod spaced at 1.00-m intervals. The moment of inertia of this object about an axis perpendicular to the rod and through one of the end masses:
a. is 49 kg·m2. b. is 21 kg·m2. c. is 31.5 kg·m2. d. is 10.5 kg·m2. e. cannot be uniquely determined until it is stated which inner mass the axis goes through.
DNA molecules cannot be altered by chance errors in reproduction
Indicate whether the statement is true or false
The atmospheres of both Titan and Triton are mainly ________
Fill in the blank(s) with correct word