Base your answer on the information below.
A stream is 30. meters wide and its current flows southward at 1.5 meters per second. A toy
boat is launched with a velocity of 2.0 meters per second eastward from the west bank of the
stream.
What is the magnitude of the boat's resultant velocity as it crosses the stream?
A)
0.5 m/s
B)
2.5 m/s s
3.0 m/s
D)
3.5 m/s
Answers: 2
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The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?
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Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60β with each other as shown in the figure. what is the intensity of the transmitted beam, st?
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An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
Answers: 1
Base your answer on the information below.
A stream is 30. meters wide and its current flows southw...
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