669
15 m/s
B
The velocity of a train relative to the ground is represented by the distance from A to B in the diagram. The velocity of a ball thrown inside the
train at an angle of 66 relative to the train is represented by the distance from Bto C What is the distance from A to c(the velocity of the ball
relative to the ground), correct to two decimal places? Assume that all the points in the diagram lie in the same plane.
ОА
21.14 m/s
OB.
18.03 m/s
17.20 m/s
OD
15.00 m/s
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Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?