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Question 1. Which, if either, requires more work- lifting a 50-kg sack a vertical distance of 2-m or lifting a 25-kg sack a vertical distance of 4m. Question 2. A car is raised a certain distance in a service-station lift and therefore has potential energy relative to the floor. If it were raised twice as high, how much potential energy would it have? Question 3. Two cars are raised to the same elevation on service-station lifts. If one car is twice as massive as the other, how do their potential energies compare? Question 4. A moving car has kinetic energy. If it speeds up until it is going four times as fast, how much kinetic energy does it have in comparison to its original speed? Question 5. An apple hanging from a limb has potential energy because of its height. If the apple falls, what becomes of this energy just before it hits the ground? When it hits the ground?
The following equation describes the observed decrease in density with increasing altitude in the lowest 100km of the atmosphere: p(z) = p0 exp(-z/h) where p(z) is the air density at altitude z, p0 is the density at sea level, and h is the scale heig..
question 1 at least 75 words in lengthlist each of the dream theories and provide a brief one to two sentence summary
What impact does this division of views have on the public policies that are enacted by state, national, and international bodies?
Why do we experience atmospheric pressure? Describe how localized areas of high and low pressure form, as well as what types of weather are associated with each.
How is health defined? How is illness defined? Whose definition is right?
Imagine you are running for political office and must explain your theory of politics to your constituents in language that can be understood by the general adult population. How would you explain your political theory?
nuclear medicine is a specialized branch of modern medicine that exploits the process of radioactivity for imaging
Explain the physical changes that occur in sexuality in men and women during middle adulthood.
A. The closer galaxy has recession speed equal to 9,594 km/s. Calculate the recession speed of the other galaxy.B. Calculate the value of the Hubble constant for this scenario.
question 1psychology is the science that studies behaviour and mental processesa how can the knowledge of psychology be
Question: What are some of the typical psychological and physiological responses to a death in the family?
what are the two general categories of meditation? and describe. nbspwrite you answer in 1 page and include reference
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