Cometary dust tails lag behind the bluish ion tails as the comet rounds the Sun
Indicate whether the statement is true or false
TRUE
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A flute behaves like a tube open at both ends. If its length is 70.0 cm, and the speed of sound is 340 m/s, what is its fundamental frequency in Hz?
a. 121 Hz c. 243 Hz b. 159 Hz d. 260 Hz
Equal volumes of gas at the same pressure and temperature contain equal numbers of molecules
Indicate whether the statement is true or false
A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then compressed a distance d and is used to launch a mass m along the frictionless surface. What compression of the spring would result in the mass attaining double the speed received in the above situation?
a. 1.41d c. 2.00d b. 1.73d d. 4.00d
The photoreceptors responsible for color vision are called
a. rods. b. cylinders. c. cones. d. cans.