subject
Physics, 01.07.2021 22:00 rol15

Remember that the first cosmic velocity is the speed needed to put an object in orbit. If a rocket were to be launched from the surface of the Earth, what would this speed be in kilometers per second

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 00:30
Part f - example: finding two forces (part i) two dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).
Answers: 2
question
Physics, 22.06.2019 05:20
Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem
Answers: 2
question
Physics, 23.06.2019 00:30
Define the terms moral development and moral reasoning
Answers: 3
question
Physics, 23.06.2019 04:00
Acaregiver's love, affection, and acceptance are considered conditional if they're given only when the child is well-behaved or meets set expectations. t or f
Answers: 3
You know the right answer?
Remember that the first cosmic velocity is the speed needed to put an object in orbit. If a rocket w...
Questions
question
Mathematics, 19.03.2020 21:58
question
Mathematics, 19.03.2020 21:59
question
Mathematics, 19.03.2020 22:00
Questions on the website: 13722361