Aspace probe is directly between two moons of a planet. if it is twice as far from moon a as it is from moon b, but the net force on the probe is zero, what can be said about the relative masses of the moons? a. moon a is twice as massive as moon b. b. moon a has the same mass as moon b. c. moon a is four times as massive as moon b. d. moon a is half as massive as moon b.

c. Moon A is four times as massive as moon B

Explanation:

Let's assume the:

According to the given condition the object is twice as far from moon A as it is from moon B

As we know, gravitational force of attraction is given by:

According to the condition

Force on m due toForce on m due to

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it