Radio waves travel through air at approximately the speed of light, c. imagine your local fm radio station broadcasts plane waves travelling in the negative x-direction with a frequency of f = 94.9 mhz. the waveform of the electric-field component is e(x, t) = e 0 sin(φ(x, where φ(0, 0) = 0 and the amplitude is e0 = 0.12 n/c. part (a) enter an expression for the function ? (x, t) in radians, in terms of the defined quantities, the position. x and the time, t ? (x, ) = grade summarv deductions 1096 potential 90% submissions attempts remaining: 3 (5% per attempt) detailed view 50% 50% submit i give up! hints: 1 % deduction per hint. hints remaining: feedback: 1% deduction per feedback. g! lus 50% part (b) calculate the value of the electric field, in newtons per coulomb, of the wave at the position x-3.9 m at the time t-0.011

"induction" is the process of charging an object without touching it.hope my answer has you : )

Answer: a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same sign as the  -4.0  µc charge.======electricstatic force between two point charges  is given by    where k is coulomb's constant,  8.99×10⁹  n·m²/c², q₁ and q₂ are the point charges, and r is the distance between the two point charges.assign positive to q₁let q₁ =  6.0 µc, q₂ = -4.0  µc, q₀ represent the charge at the origin, and q₃ represent this new charge to place.the charge at the origin q₀ would experience the following force f₀₁ from q₁, with r = 6.0 m (note that 1  µc = 10⁻⁶ c)    the force from q₂    the force from q₃    the net force on the origin charge, q₀, has to be zero for no electrostatic forcehaving an equation where k and q₀ can be divided out of the equation will allow us to solve for q₃    isolating:     a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same as the  -4.0  µc charge