Explain what makes a selection method effective
Explain what makes a selection method effective and discuss the concepts of reliability, validity, utility, and legality in your response. (150 words)
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What national security policies seem to be most necessary for our President to respond to at the present time? Why?
Suppose an electric field with a magnitude of 2.8 E 4 N/C at a certain location, points due south. If a charge of -4.0 E -6 C is brought to the location, what is the electrostatic force that acts on this charge?
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If this position is to remain correct to one-half the width of a finger (that is, to within 0.600 cm.), what is the maximum allowable percentage change in the string tension?
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A small, 100g cart is moving at 1.2 m/s on an air track when it collides with a larger, 1.00kg cart at rest. After the collision, the small cart recoils at .850 m/s. what is the speed of the large cart after the collision?
An airplane flies horizontally with speed 1000km/h(280m/s) an engine falls it takes 30s to gets to the ground. neglect air resistance show the airplane is 4.5km high?
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