Physics, 05.07.2020 14:01, realoneree
A string (with uniform mass density) is attached to a wave generator with variable frequency to create standing wave patterns. The string goes over a pulley and is connected to a mass (which can be varied) to create tension in the string.1) If the frequency is changed (while the mass is held fixed), what else will change?
a) The wavelength of the wave will change.
b) The speed of propogation of the wave will change.
c) Both the wavelength and speed of propogation of the wave will change.
d) Neither the wavelength nor speed of propogation of the wave will change.
2) If the hanging mass is changed (while the frequency is held fixed), what else will change?
a) The wavelength of the wave will change.
b) The speed of propogation of the wave will change.
c) Both the wavelength and speed of propogation of the wave will change.
d) Neither the wavelength nor speed of propogation of the wave will change.
Answers: 3
Physics, 22.06.2019 02:30, cooboy
Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.
Answers: 3
Physics, 22.06.2019 23:30, jayv1999
An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.
Answers: 2
A string (with uniform mass density) is attached to a wave generator with variable frequency to crea...
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