Obtaining the focal length of the lens
A simple single lens camera (biconvex lens) is used to photograph a man 1.5 m tall who is standing 5.0 m from the camera. if the mans image fills the length of a frame of film (35mm) what is the focal length of the lens?
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You conducted a Chi-Square Goodness of Fit Test. Unfortunately, you did not get the sample size you had hoped for during your research. You were able to get 55 in the sample.
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'Natural gas' can be represented by CH4 (methane) and "gasoline" can be represented by C8H18 (octane). Write the chemical formulas for the combustion of methane and octane.
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Marble chips (calcium carbonate, CaCO3) react with hydrochloric acid, HCl, to produce calcium chloride, CaCl2, water and carbon dioxide according to the following reaction: CaCO3 + 2 HCl CaCl2 + H2O + CO2 How many different reactants are shown in
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A satellite is in a circular orbit about the earth (M = 5.98 x 1024 kg). The period of the satellite is 1.38 x 104 s. What is the speed at which the satellite travels?
The student body of a large university consists of 30% Business majors. A random sample of 20 students is selected. What is the probability that among the students in the sample at least 10 are Business majors?
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