Physics, 18.05.2021 14:00, katiepotter
A wire is bent into the shape of a rectangle of sides a and b forms a closed circuit and
carries current I. The circuit lies in the xy plane, and a uniform magnetic field is present along
the -x axis as shown in Figure 2. Taking a = 6 cm, b = 10 cm, B = 2.5 T, and I = 2.0 A,
a) find the magnetic force (magnitude and directions) acting on each side of the wire.
b) Do you think the loop will rotate? If it does, calculate the torque and describe the direction of
the rotation. If it doesn't, give reason
Answers: 3
Physics, 22.06.2019 00:30, Solany6426
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 18:30, ayoismeisalex
Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction
Answers: 2
A wire is bent into the shape of a rectangle of sides a and b forms a closed circuit and
carries cu...
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