A rectangular building lot has a width of and a length of .Determine the area of this lot in square meters
The area of the rectangular building in square meters is .
The width of the rectangular building ,
The length of the rectangular building, .
The formula to calculate the area of the rectangular building is as follows:
Conversion from foot to meter:
Calculate the area of the building.
Substitute for w and for into equation (i).
Convert the unit for the area of the building from square feet to square meters
Why is the following situation impossible? A student’s dormitory room measures 3.8 m by 3.6 m, and its ceiling is 2.5 m high. After the student completes his physics course, he displays his dedication by completely wallpapering the walls of the room with the pages from his copy of volume 1 (Chapters 1–22) of this textbook. He even covers the door and window.
You stand in a flat meadow and observe two cows. Cow A is due north of you and 15.0 m your position. Cow B is 25.0 m from your position. From your point of view, the angle between cow A and cow B is , with cow B appearing the right of cow A.
(a) How far apart are cow A and cow B ?
(b) Consider the view seen by cow A. According to this cow, what is the angle between you and cow B.
(c) Consider the view seen by cow B. According to this cow, what is the angle between you and cow A. Hint: What does the situation look like to a hummingbird hovering above the meadow? (d)Two stars in the sky appear to be apart. Star A is from the Earth and star B appearing to the right of Star A, is from the Earth. To an inhabitant of a planet orbiting Star A, what is the angle in the sky between star B and our Sun?
Question: Air is blown into a spherical balloon so that, when its radius is 6.50 cm , its radius is increasing at the rate .
(a) Find the rate at which the volume of the balloon is increasing.
(b) If this volume flow rate of air entering the balloon is constant, at what rate will the radius be increasing when the radius is 13.0 cm ?
(c) Explain physically why the answer to part (b) is larger or smaller than , if it is different.
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