Physics, 28.10.2020 01:10 janely6017
What is the net force on the runner below if the
applied force is + 40 N and the resistive force is -2
N?
Answers: 1
Physics, 22.06.2019 00:30
Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine
Answers: 1
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
Physics, 22.06.2019 02:30
The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?
Answers: 3
Physics, 22.06.2019 06:00
In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.
Answers: 1
What is the net force on the runner below if the
applied force is + 40 N and the resistive force is...
Mathematics, 26.06.2019 06:30
English, 26.06.2019 06:30
Biology, 26.06.2019 06:30
Chemistry, 26.06.2019 06:30
Biology, 26.06.2019 06:30
Biology, 26.06.2019 06:30
Chemistry, 26.06.2019 06:30
Mathematics, 26.06.2019 06:30