The length of your arm is closest to
A) 10 centimeters.
B) one meter.
C) one kilometer.
D) 100 meters.
E) two meters.
B
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How would you describe the rapid variations in CO2 on the inset graph on the right?
A) The variations occur randomly every few years. B) The variations occur randomly every few months. C) The variations occur regularly every few years. D) The variations occur regularly every year. E) The variations occur regularly every few months.
Which is more massive?
A. Earth (a solid object) B. the Sun (a gaseous giant)
A straight wire of length 70 cm carries a current of 50 A and makes an angle of 60° with a uniform magnetic field. If the force on the wire is 1.0 N what is the magnitude of B?
a. 41 mT b. 33 mT c. 55 mT d. 87 mT e. 57 mT
For which value of ? is the range of a projectile fired from ground level a maximum?
A) 30° above the horizontal B) 45° above the horizontal C) 55° above the horizontal D) 60° above the horizontal E) 90° above the horizontal