The moon has a mass of 3.45x10^22 Kg and a radius of 1.74x10^6 m. If a 3000 Kg spaceship is on the surface of the moon, what would be the gravitational force between the ship and the moon?

Um vetor representa um deslocamento cujo módulo é 20 m. se v faz um ângulo de 60 graus com a horizontal, qual é o valor das componentes horizontal e vertical deste vetor?

Will you chech and finish these for me, because i am stumped with them.

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?