Determine the dirction of the crates velocity
When x = 10 ft, the crate has a speed of 20 ft/s which increasing at 6 ft/s^2. Determine the dirction of the crate's velocity and the magnitude of the crate's acceleration at this instant.
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Calculate the amplitude of the oscillation which may be allowed if the maximum permissible intensity of shearing stress in the wire is 140 MN/m2
A tuning fork vibrates at a frequency of 256 Hz. What is the wavelength of the sound coming from the fork when the air temperature is a) 0oC and b) 20oC
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An engine of mass 180 kg is to be supported on four helical springs. When the engine speed is 900 rpm, there is a primary vertical periodic disturbing force of maximum value 300 N due to the unbalanced reciprocating weights.
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The researchers wanted to see if there was a change in contamination in crayfish. What is the test statistic for this problem? (use 2 decimal places)?
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Approaching a new social situation is similar to solving a cognitive problem. Children approaching a group of peers need to understand the others' communication
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A small number of children and adolescents who are perceived to be popular, however, display a mix of positive and negative behaviors
Question: Identify and distinguish between positive and negative reinforcement contingencies.