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20. an electron with total energy 5 ev approaches a potential barrier of height 20 ev. if the probability that the electron tunnels across the barrier is 0.03, what is the width l of the barrier? a. 0.0116 nm b. 0.116 nm c. 1.16 nm d. 11.6 nm e. 116 nm spring 2009 21. define k ue
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The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element
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The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?
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What is the state of matter with a specific volume but no definite shape
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20. an electron with total energy 5 ev approaches a potential barrier of height 20 ev. if the probab...
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