Mathematics, 25.10.2020 19:10 Will1119
If a pistol bullet is fired vertically at an initial speed of 100 m/s, the height in metres after
t seconds is given by h = 100t – 10t2
Find the maximum height attained by the bullet
When does the bullet return to the ground?
Answers: 3
Mathematics, 21.06.2019 20:30, shonesam98
Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters
Answers: 1
Mathematics, 21.06.2019 20:30, attp203
Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
Answers: 3
If a pistol bullet is fired vertically at an initial speed of 100 m/s, the height in metres after
t...
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