A man stands 80m in front of a cliff face.
He makes aloud bang and listens for the
echo. He ma...
Physics, 10.06.2021 08:30, staffordkimberly
A man stands 80m in front of a cliff face.
He makes aloud bang and listens for the
echo. He makes a loud bong once every second
He hears an echo exactly half way between
the bang that caused it and the next hang
A 40mis
B. 20m/s
C 160mis
D 320m/s​
Answers: 2
Physics, 22.06.2019 09:00, cmflores3245
Sobre transformações cĂclicas, sĂŁo feitas algumas afirmações, determine quais estĂŁo corretas. i – a variação de energia interna em uma transformação cĂclica Ă© nula; ii – o trabalho, em uma transformação cĂclica, Ă© sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cĂclica Ă©, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocĂłrica, 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 13:20, monkeygaming274
Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
Answers: 1
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