If an elephant has a mass of 2,000 kg, what is its weight on earth? (1 point) a. 0.0049 n b. 204 n c. 19,600 n d. 43,100 n

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?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g