Physics, 16.10.2019 18:10 alizeleach0123
In which one of the following systems is there a decrease in gravitational potential energy? group of answer choices
a. a girl jumps down from a bed.
b. a spring is compressed horizontally
c. a crate rests at the bottom of an inclined plane water is forced upward through s pipe
d. a car ascends a steep hill
Answers: 2
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Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?
Answers: 3
Physics, 21.06.2019 22:30
What is the earliest point in the universe that we can observe? why can’t we see back further than this?
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Physics, 22.06.2019 09:00
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
Answers: 1
Physics, 22.06.2019 12:00
If the new moon happens on january 15th, what shape will it be on february 6th?
Answers: 1
In which one of the following systems is there a decrease in gravitational potential energy? group...
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