2 Points
Why is a short circuit dangerous?
O
AlimIt opens a circuit and stops the...
Physics, 17.04.2020 18:35 AmityHeart
2 Points
Why is a short circuit dangerous?
O
AlimIt opens a circuit and stops the current.
O
B. It increases the resistance in the circuit.
C. It prevents a circuit from working.
D. It results in a very large current.
Answers: 2
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 17:30
You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
Answers: 3
Physics, 22.06.2019 22:00
Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?
Answers: 3
Social Studies, 15.12.2020 22:50
Law, 15.12.2020 22:50
Mathematics, 15.12.2020 22:50
English, 15.12.2020 22:50
Mathematics, 15.12.2020 22:50