QUESTION 4
Given the equation y = mx+b, if y has units of meters/seconds, x has units of meters and m has units of 1/seconds, what units must b have?
seconds/meter |
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meters |
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seconds |
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meters/seconds |
2.
You measure 10 trails of the time it takes a snail to travel 2 cm. You find the average and the standard deviation of these trials. What are the units on the standard deviation?
cm^2/counts |
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cm |
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counts/cm |
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cm/counts |
QUESTION 4 Given the equation y = mx+b, if y has units of meters/seconds, x has...
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Suppose A = B^xC^y, where the units in meters and seconds of A, B, C are respectively m.s, m2/s, and m.s2. Then the exponents x and y have the values: A) 2/3 ; 1/3 B) 4/5 ; -1/5 C) 1/5 ; 3/5 D) 2 ; 3
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QUESTION 15 A sinusoidal wave has the equation shown below, with x and y in meters and t in seconds. y = 0.015 Sin [8.055 x - 2674.6 t + 0.20 a) What is the frequency of the wave? b) What is the wavelength of the wave? c) What is the speed of the wave?
A sinusoidal wave has the equation shown below, with x and y in meters and t in seconds. y = 0.015 Sin [8.055 x - 2674.6 t + 0.20] a) What is the frequency of the wave? b) What is the wavelength of the wave? c) What is the speed of the wave?
The position x, in meters, of an object is given by the equation x = A + Bt + Ct 2, where t represents time in seconds. What are the SI units of A, B, and C? A m, s, s B m, m/s, m/s2 C m, m, m D m/s, m/s2, m/s3 E m, s, s2
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QUESTION 3 How much time in seconds does it take to travel this from the ground floor to the top floor? Remember that the cab must start from rest when you get on and stop moving for you to get off. There will be three different types of motion. Another similar elevator has been designed to travel a distance of 363 meters from the bottom to the top floor It has an acceleration of 1.44 meter per second squared when...