A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without slipping, reaching a maximum height of 9.00 m above the base of the hill. We can model this ball as a thin-walled hollow sphere.
Required:
a. At what rate was it rotating at the base of the hill?
b. How much rotational kinetic energy did it then have?
Answers: 1
Physics, 22.06.2019 09:00, cmflores3245
Sobre transformaƧƵes cĆclicas, sĆ£o feitas algumas afirmaƧƵes, determine quais estĆ£o corretas. i ā a variaĆ§Ć£o de energia interna em uma transformaĆ§Ć£o cĆclica Ć© nula; ii ā o trabalho, em uma transformaĆ§Ć£o cĆclica, Ć© sempre positivo; iii ā ao completar um ciclo, o gĆ”s tem a mesma temperatura com a qual comeƧou a transformaĆ§Ć£o; iv ā uma transformaĆ§Ć£o cĆclica Ć©, obrigatoriamente, composta de transformaƧƵes conhecidas, como adiabĆ”tica, isocĆ³rica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Physics, 22.06.2019 13:00, caleb1009
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius Ļa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature Ļr of its path, both as observed by the nonrotating skydiver.
Answers: 3
Physics, 23.06.2019 04:31, josephvaldez518
Which of the following is probably the least necessary character trait needed to be a good clinical nurse?
Answers: 3
A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without slipping, reaching a...
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