Aradio transmitting station operating at a frequency of 120 mhz has two identical antennas that radiate in phase. antenna b is 9.00 m to the right of antenna a. consider point p between the antennas and along the line connecting them, a horizontal distance x to the right of antenna a. for what values of x will constructive interference occur at point p?

x = 4.5 m, 5.75 m, 6.5 m, 8.25 m

Explanation:

= frequency of radio transmitting station = 120 MHz = 120 x 10⁶ Hz

= speed of the radio wave = 3 x 10⁸ ms⁻¹

= wavelength

Wavelength is given as

= distance between the two antennas = 9.00 m

= Distance of point P from the antenna A

= Distance of point P from the antenna B

= Path difference

Path difference is given as

For constructive interference, Path difference is given as

For n = 0

For n = 1

For n = 2

For n = 3

c) up is the direction the magnetic force is acting on the charge.

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.