Determine the speed of river
The paddle boat can move at the speed of 12 km/h in still water. Boat is paddled 22 km downstream in the river in same time it takes to go 11 km upstream. Determine the speed of river?
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The spring is hanging vertically from the ceiling. (Suppose the spring's mass is negligible.) I hang a 0.5kg mass on the spring and let the spring slowly stretch to the equilibrium position.
The radio transmission tower is 175 feet high. How long must the guy wire be if it is to be attached to tower 15 feet from top and is to make the angle of 23 degree with ground?
Determine values of trigonometric functions of an angle (in standard position) whose terminal side passes through given point. Coordinates are approximate.
For the normal distribution with µ = 80 and s = 12, determine the X value associated with each of the following proportions: What X value separates the distribution in the top 40% versus bottom 60%?
In a RLC series circuit, the phase angle is 40.0 degrees, having source voltage leading the current. The reactance of the capacitor is 400 ohm with resistance of the resistor is 200 ohm. The average power delivered by the source is 150 W. What is
Suppose A, B and C are independent events, with probabilities, P(A), P(B) and P(C). What are the probabilities that at least two of the three events occur, using set notation?
How far from top of tower should a 550-m high helicopter be in order that angle subtended at helicopter by part of tower above deck equals an angle subtended by part of tower below deck?
What is a good topic to test using a Randomized Block Design? What would the dependent and independent variable be?
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