Physics, 31.12.2019 04:31 oneicyahdaley10
Awave pulse travels along a string at a speed of 160cm/s . note that parts a - d are independent and refer to changes made to the original string.
a)what will be the speed if the string's tension is doubled?
b)what will be the speed if the string's mass is quadrupled (but its length is unchanged)?
c)what will be the speed if the string's length is quadrupled (but its mass is unchanged)?
d)what will be the speed if the string's mass and length are both quadrupled?
Answers: 1
Physics, 21.06.2019 20:20
Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?
Answers: 2
Physics, 22.06.2019 02:30
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 19:30
Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical
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Awave pulse travels along a string at a speed of 160cm/s . note that parts a - d are independent and...
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