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A bullet with a mass of 4.0g and a speed of 650 m/s is fired at a block of wood with a mass of 0.095kg. The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 23 m/s.
(A) what is the speed of the bullet when it exits the block? (B) is the final kinetic energy of this system equal to, less than, or greater than the initial kinetic energy? Explain. (c) verify your answer to part (b) by calculating the initial and final kinetic energies of the system.
The lengths of time bank customers must wait for a teller are normally distributed, with a mean of 3 minutes and a standard deviation of 1 minute. 1) What proportion of bank customers waits between 3 and 4 minutes
Hoping to learn what issues may resonate with voters in the coming election, the campaign director for a mayoral candidate selects one block.
define externalities in consumption and production of goods and services. why do they occur? what are examples of
you plan to conduct a survey to find what proportion of the workforce has two or more jobs. you decide on the 99
In the past, of all the students enrolled in "Basic Business Statistics" 10% earned A's 20% earned B's, 30% earned C's, 20% earned D's and the rest either failed or withdrew from the course.
A hand of five cards contains two aces and three kings. The five cards are shuffled and dealt one by one, until an ace appears.
Translate the following arguments into symbolic form.- If either the sea turtle population continues to decrease or rescue efforts are commenced to save the sea turtle from extinction, then nesting sanctuaries will be created and the indiscriminate..
The elastic limit and ultimate strength of reinforcing steel are often stated to be a function of bar size owing to differences in the rates of cooling
Draw the graph of the regression line on the same plot as the scatter diagram above.
Does taking calcium help to reduce premenstrual symptoms? To investigate, we could devise a questionnaire that measured the severity of symptoms.
Find out whether or not right-hemisphere damage results in significantly reduced performance on spatial skills task. Test with alpha set at .05 with one tail.
the management of red cat computers was considering launching a new product called the tiger 100. the problem was that
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