At 9: 00 on saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path. the bicyclist heading north is riding 5 km/hour faster than the bicyclist heading south. at 10: 45, they are 47.25 km apart. find the two bicyclists’ rates (speed/velocity).
Answers: 1
Physics, 22.06.2019 09:00
Sobre transformações cÃclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cÃclica é nula; ii – o trabalho, em uma transformação cÃclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cÃclica 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 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Physics, 22.06.2019 16:30
Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?
Answers: 2
Physics, 22.06.2019 17:30
This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.
Answers: 1
At 9: 00 on saturday morning, two bicyclists heading in opposite directions pass each other on a bic...
Mathematics, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00
English, 14.01.2021 18:00
English, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00
English, 14.01.2021 18:00
Health, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00
English, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00
Physics, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00
Mathematics, 14.01.2021 18:00