Use a spreadsheet to make an xy scatter graph of the following speed versus coefficient of drag data for a Brazuca soccer ball. Note that the actual function for the coefficient of drag is not logarithmic. A logarithmic curve is being used for the purposes of this test only.
Speed (km/hour)
Coefficient of drag
23
0.49
40
0.40
47
0.20
62
0.18
123
0.20
Add a LOGARITHMIC trend line and equation to the graph. Write the logarithmic equation below:
__________ Based on the logarithmic equation in part a, what will be the coefficent of drag at 100 kilometers per hour?
__________ Based on the logarithmic equation in part a, at what speed will the coefficient of drag be 0.30?
Either make the calculation or solve for x as appropriate. Round answers to two decimal places.
____________ log71
____________ ln x = 1.0986123
____________ log 2 + log 3 = log x
____________ log x = 1
____________
____________ logx21=1
____________ ln(x − 7) = 3.04452244
____________
_________ Using a 45 foot long rope, Tommy in the center, Jamal walking in a circle with the rope taut, Maybelline would measure a length of 283 feet. Calculate the value of pi based on this data.
_________ The curve on a 400 meter track is roughly 100 meters long. What is the radius of this curve in meters?
_________ Convert radians to degrees.
_________ Convert 45° to radians expressed as π over a number.
_________ Calculate: 100 sin(60°)
_________ Calculate: 100 cos(30°)
_________ Calculate: 200 sin(45°)
_________ Calculate: 200 cos(45°)
Suppose I want to inscribe a square inside a circle with a radius of 200. What will be the SVG coordinates of the four corners a, b, c, d? The center of the circle is at (0,0). Try to remember that the y-axis is "upside-down."