together 3 students pull to the left on a rope with 50 n of force each. at the same time 2 students pull to the right on the rope with 75 n of force each. will it move to the left, right, or not at all?

An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b. what is the wavelength of the wave? c. what is the amplitude of the magnetic field? d. what is the intensity of the wave?

Is the vertical component of velocity ever zero?

How many electrons does each element require in its valence shell to become stable?