Magnitude of the average force acting on the nail
A 8 kg hammer strikes a nail at a velocity of 8.7 m/s and comes to rest in a time interval of 8.0 ms.
(a) What is the impulse given to the nail?(b) What is the magnitude of the average force acting on the nail?
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A two independent sample test for difference of population means is based on samples of size 25 and 28. What is the degrees of freedom for the corresponding t-distribution?
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A 8 kg hammer strikes a nail at a velocity of 8.7 m/s and comes to rest in a time interval of 8.0 ms. (a) What is the impulse given to the nail? (b) What is the magnitude of the average force acting on the nail?
Write the expression for the thermodynamic Ka for acetic acid (CO3COOH); for example. using activities. Write out the concentration based constant as a function of Ka (thermodynamic) and the individual activity coefficients (y) gamma for the ions
A new model of mass 1200 kg takes 0.10 s from the time of impact until it is brought to rest. (Take the positive direction to be the original direction of motion.)(a) Calculate the average force exerted on the car by the barrier.
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