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A 6.0 kg object that is 3.0 m from the surface of the Moon has 28.8 J of gravitational potential energy. What is the value of g?
(Gravitational field strength/Gravitational acceleration)
Stuck trying to reverse logic this problem... If anyone has any steps using Eg=mgh I would appreciate it.
[G 7.24) An alternating current Io cos (wt) (amplitude 0.5 A, frequency 60 Hz) flows down a straight wire, which
runs along the aris of a toroidal coil with rectangular cross section (inner radius 1 cm, outer radius 2 cm, height 1
cm, 1000 turns). The coil is connected to a 500 ohm resistor.
(a) In the quasistatic approximation, what emf is induced in the toroid? Find the current, I, (t), in the resistor.
b) Calculate the back emf in the coil, due to the curent I, (t). What is the ratio of the amplitudes of this back emf
and the "direct" emf in ( a ) ?
What is the total electric flux through a closed surface containing a 2.0 uC charge?
q1 = 1nC, q2 = 1nC and q3 = -2nC. Which are located at x = 0 and y= 0, x= 1 cm and y= 0 and x= 1cm and y = 2cm respectively. What is the net force on q1 and in what direction?
Using Gauss’ theorem, calculate the flux of the vector field A= x^3 i + x^2z j + yz k
through the surface of a cube of side 2 units
A charged particle moving perpendicular to a magnetic field will experience
The expression of the magnetic field associated with an electromagnetic wave in
vacuum is given by
B = (100Vm^1) z sin ( 2π × 10^8t + kz)
Determine the wave number, frequency and the direction of propagation of the wave,
and the magnitude and direction of the magnetic field associated with the wave.
Explain electric field
Calculate the magnitudes of magnetic intensity
H and the magnetic field B at the centre of a 2000-turn solenoid which is 0.50 m long and carries a current of
1A.
Determine the work done by a force F = xyi + yzj + xzk in taking a particle along
the path defined by the equation r(t) = ti + 2t^2j + t^3k, 0<= t <= 1 from t=0 to t= 2.
is the force conservative??
#340153 on Dec 2023