At their closest approach, Venus and Earth are 4.20 × 10 10 m apart. The mass of Venus is 4.87 × 10 24 kg, the mass of Earth is 5.97 × 10 24 kg, and What is the force exerted by Venus on Earth at that point?

Explanation:

The magnitude of the gravitational force between two objects is given by :

where :

is the gravitational constant

m1, m2 are the masses of the two objects

r is the separation between them

In this problem:

is the distance between Venus and the Earth

is Venus mass

is the Earth's mass

Substituting, we find the gravitational force between the two planets:

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m