Analysis of a Power Law Suppose we are told that the acceleration (a) of a particle moving with uniform speed (v) in a circle of radius (r) is proportional to some power of r, say (r"), and some power of (v), say (vm). Determine the values of (n) and (m) and write the simplest form of an equation for the acceleration. Hint: use an expression for (a) with a dimensionless constant of :proportionality (k) a = k rn vm

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Is it possible to add a scalar quantity and a vector quantity? Group of answer choices No, vectors have direction and scalars do not. No, scalars have direction but vectors are just a magnitude. Yes, as long as the units are the same. Yes, but only every other Tuesday.

Part A If the car's speed decreases at a constant rate from 76 mi/h to 50 mi/h in 3.0 s, what is the magnitude of its acceleration, assuming that it continues to move in a straight line? Express your answer in miles per hour squared. 1961 ΑΣΦ mi/h² You have expressed your answer in miles per hour per second. Note that you need to express your answer in miles per hour squared. You may need to review Conversion Between Seconds and Hours No credit lost. Try again. Submit Part B Previous Answers Request Answer Submit ? What distance does the car travel during the braking period? Express your answer in feet. VAX+ Best Answer ft