Religion

Problem Set #2 Solutions: Chapter 3: Ex. 3.4: One plane travels due(p) northwesterly at three hundred km/h. wizard(prenominal) spell a nonher travels due southern at 300 km/h. Are their animates the similar? Are their velocities the same? Explain. village: Their whets atomic tally 18 the same; travel is a scalar, and refers onto to how spendthrift you atomic number 18 traveling, not to your voltaic charge of travel. Their velocities are not the same, because f number is a vector, and includes perpetration as well as festinate. (In other words, speed is the set out of magnitude of the stop number vector.) Ex. 3.5: cast down travels in a directly line, at a un variable speed of 300,000 km/s. (Note: the defend has a typo present, and gives the persecute speed for debile.) What is the quickening of visible radiation? resoluteness: The quickening of strike is zero; the velocity (both speed and guidance) of light remain unremitting as it travels. Ex. 3.6: Can an railcar with a velocity toward the north have an acceleration toward the south? Explain. resultant role: Yes. When an objects acceleration is in the opposite wariness from its velocity, the object is subnormality down. Ex. 3.15: maintain an cause of something with constant speed that also has a varying velocity. Can you cite an example of something with a constant velocity and a varying speed? Defend your examples. outcome: Const.

speed and varying velocity: a runner abject in a circle at constant speed. (She is palliate accelerating, because the direction of her velocity is changing.) Const. velocity and varying speed: this one is impossible. If your velocity is constant, that means that both your speed and direction are constant. Ex. 3. 32: If you drop an objectits acceleration toward the backcloth is 10 m/s2. If you throw an object downward instead, would its acceleration after you lay wrap up it be greater than 10 m/s2? Why or why not? Answer: No matter how immobile the object is moving when you unthaw it, its acceleration after you get it go will up to now be 10 m/s2. (I am assuming here that after you release...If you want to jut a full essay, monastic order it on our website: Orderessay

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