How many counts per second would you obtain
Suppose you had a detection device that could count every decay from a radioactive sample of plutonium-239 (t1/2 is 24000 yr). How many counts per second would you obtain from a sample containing 0.172 g of plutonium-239?
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Find the displacement amplitudes of the a) initial note and b) the final note. part c and d should be in pascals.
Given that the E(o) for Cu+ is 0.521V and the E(o) for Fe(2+) is -.440V, determine the cell potential for the reaction and state wether or not the reaction is spontaneous.
In the bucket there are 200 tickets and 36 of them have a W. Let's consider the first 20 students that draw a raffle ticket and calculate the following. What is the expected number of W's drawn?
An ambulance moving at 42 m/s sounds its siren whose frequency is 450Hz. A car is moving in the same direction as the ambulance at 25 m/s. What frequency does a person in the car hear (a) as the ambulance approaches the car? (b) After the ambulanc
Let the random variable Xdenote the yearly revenue of the product. Determine the cumulative distribution?
Two 69 g ice cubes are dropped into 234 g of water in a thermally insulated container. If the water is initially at 25°C, and the ice comes directly from a freezer at -15°C, what is the final temperature at thermal equilibtrium?
Suppose a compact disk (cd) you just purchased has 15 tracks. After listening to the CD, you decide that you like 6 of the songs. The random feature on your CD player will play each of the 15 songs once in a random order.
The population of Douglas fir trees was shown to have an approximately normal diameter distribution with mu = 50 centimeters (cm) and sigma = 12 cm. Find the diameter d such that 30% of the Douglas fir trees in the population have diameters that e
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The parents describe her as fussy and prone to explosive tantrums when they enter a noisy environment or a brightly lit room.
What Drives You? We talked about Maslow's Hierarchy, ERG Theory, and the Acquired Needs Theory. Which theory do you relate to the most?
Relapse is often described as a process rather than an event. Discuss how biological, psychological, social, and environmental factors interact
Apply which viewpoint you believe to explain how their early attachment experiences may affect their adult relationships.
Twenty-five year old Justin does not have many close relationships and rarely talks to his parents. He complains that his father was too strict
According to researchers, optimal identity development among adolescents is most likely to be promoted in homes where parents.
According to the sociocultural approach, an adolescent's violent behavior would most likely be attributed to which of the following?