Wednesday
July 23, 2014

Posts by Argelia


Total # Posts: 10

pre-cal
solve for all values in [0,2pie) 2cos^2x-5sinx+1=0

pre-cal
solve for all values in [0,2pie) 2sin^2x-1=0

pre-cal
consider y=-2+5cos(20x-5pie) the period is? the frequency is? the vertical shift is? the horizontal shift is?

physics
A flowerpot falls from a window sill 28.4 m above the sidewalk. What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s2 . Answer in units of m/s

physics
An apple falls from a tree and hits the ground 9.93 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

physics
Consider a position-time graph. The position is to be graphed 1. along the horizontal axis. 2. along either axis you choose. 3. along the vertical axis.

physics
A runner is jogging at a steady 2.3 km/hr. When the runner is 8.4 km from the finish line, a bird begins flying from the runner to the finish line at 9.2 km/hr (4 times as fast as the runner). When the bird reaches the finish line, it turns around and flies back to the runner....

physics
Two ants race across a table 63 cm long. One travels at 5.14 cm/s and the other at 3 cm/s. When the first one crosses the finish line, how far behind is the second one? Answer in units of cm

physics
As it passes over Grand Bahama Island, the eye of a hurricane is moving in a direction 62 north of west with a speed of 98 km/h. Three hours later, it shifts due north, and its speed slows to 30 km/h. How far from Grand Bahama is the eye 4.50 h after it passes over the is...

physics
Bob heads out into a lake at an angle of 34 with respect to the shore. If his boat is capable of a speed of 2.5 m/s, how far from land will he be in 7 min and 31 s ? Answer in units of m

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