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The very existence of a shadow is dependent on light. the rock group with the title ( Shadows of Knight) was something of a contradiction though they meant an armored warrior. In other words a certain amount of light is required to produce a shadow. This knocks out a number of popular stories of someone walking home in (always) deserted or poorly lighted streets being guided by a shadow. analyze the facts it does not work out! In astronomy- an object at the zenith- ninety degrees elevation- or Twelve O'clock high- does not cast a shadow. there are a number of technical factors of interest to artists and photographers.. but I cannot get into them in this narrow compass.
What else can I help you with?
If a 5 ft post cast a shadow of 1.2 ft find the length of the shadow for a 17 ft post?
The length of the shadow is proportional to the height of the post. Thus, if l is the length of the unknown shadow, l/17 = 1.2/5 or l = 4.1 feet. This should be rounded to 4 if the value 5 is not considered to be known to at least two significant digits.
At a certain time of day a person 6 feet tall casts a 4-foot shadow How long is the shadow cast by a 21-foot tree at the same time?
Designate the unknown shadow length by s. Shadows cast at the same time and place are proportional to the height of the object casing the shadow. Therefore: 4/6 = s/21, or s = [4(21)]/6 = 14 feet.
How is a proportional and non-proportional relationship different?
Proportional is when it is proportional.
If A is proportional to B square and B is proportional to C Square then A is proportional to?
A is proportional to C4.
Is 120-xL proportional or not proportional?
It is an expression, not an equation and so cannot be proportional nor non-proportional.
A 3 foot pole casts a 6 foot shadow A 4 foot pole casts an 8 foot shadow Use a linear equation to predict the length of a shadow cast by a 6 foot pole?
Shadow lengths are proportional to the heights of objects casting the shadows. Therefore, calling the shadow length l, the height h, and the proportionality constant k, l = kh. (The intercept is 0 because an object with no height casts no shadow.) Therefore, in this instance k = l/h = 6/3 or 8/4 = 2. then l(6) = 2 X 6 = 12 feet.
If the shadow of a tree is 7 m long and the shadow of a person who is 0.9 m tall is 2 m long how tall is the tree?
The length of the shadow at any moment is proportional to the height of the object casting the shadow. call the unknown height of the tree h, then, h/7 = 0.9/2, or h = 7(0.9)/2 = 3 m, to the justified number of siginifcant digits, or 3.15 m if the single digit numbers given are all considered to be exact.
What is directly and inversely proportional relationship?
Directly proportional relationship is F=ma, F is directly proportional to a. Inversely proportional relationship is v=r/t, v is inversely proportional to t.
What the relationship between mass and the amount of gravity that pulls 2 object together?
The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.
What is an antonym for proportional?
Disproportional.If instead you're looking for the antonym of directly proportional, that would be inversely proportional.
Are speed and distance directly proportional or inversely proportional?
Directly proportional. Greater speed - greater distance.
Are 16 to 9 proportional?
Your question is incomplete... proportional to WHAT?
