Problem on collision between a hammer and a nail
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 14 g nail when it is struck by a 550 g hammer moving with an initial speed of 5.1 m/s.
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Two nanowires are separated by 1.2 nm as measured by STM. Inside the wires the potential energy is zero, but between the wires the potential energy is greater than the electron's energy by only 1.4 eV. Estimate the probability that the electron pa
65% of college students make one late payment per year. Of 10 randomly selected students what is the probability of more than 7 making a late payment?
A sample of 200 items will be taken and the population standard deviation is s = 10. Use a = .05. Compute the probability of making a Type II error using the population means shown below (to 4 decimals).
A small car collides with a large truck. Is the magnitude of the force experienced by the car greater than, less than, or equal to the magnitude of the force experienced by the truck?
Although the acid-dissociation constant for phenol(C6H5OH) is 1.3 x 10-10. The base-dissociation constant for the phenolate ion(C6H5O-) is not.
A plane has an airspeed of 142 m/s. A 16.0 m/s wind is blowing southward at the same time as the plane is flying. If the velocity of the plane relative to Earth is due east, what is the magnitude of that velocity?
What is the chance that at least one number appears more than once? Please provide at least a few details as to how your arrive at your answer.
How many wayss are there to select an unordered group of eight numbers between 1 and 25 inclusive with repetition? In what what fraction of these ways is the sum of these numebrs even?
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