Physics, 02.12.2019 15:31 zahriamarie10
It is common to see birds of prey rising upward on thermals. the paths they take may be spiral-like. you can model the spiral motion as uniform circular motion combined with a constant upward velocity. assume a bird completes a circle of radius 6.00m every 5.00s and rises vertically at a rate of 3.00m/s.
1. find the speed of the bird relative to the ground.
2. find the magnitude of the bird's acceleration.
3. find the direction of the bird's acceleration.
4. find the angle between the bird's velocity vector and the horizontal.
Answers: 1
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Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
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It is common to see birds of prey rising upward on thermals. the paths they take may be spiral-like....
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