Physics, 04.02.2020 14:47 abbygriffin2009
12. which of the following can be calculated if the length of the effort arm and the length of the resistance arm are given? (points : 3)
the mechanical advantage of a lever can be calculated.
the mechanical advantage of a wheel and axle can be calculated.
the mechanical advantage of a pulley can be calculated.
the mechanical advantage of a wedge can be calculated.
Answers: 1
Physics, 21.06.2019 22:30
How many molecules are present in 3 mols of silicon dioxide (sio2)?
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Physics, 22.06.2019 09:00
As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
Answers: 2
Physics, 22.06.2019 15:30
To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin.answer in one word.part bfind e(r), the magnitude of the electric field at distance r from the point charge q.express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q.express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r
Answers: 2
12. which of the following can be calculated if the length of the effort arm and the length of the r...
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