steam power plant burns 50 tons of coal every hour. The useful power output of the plant is 130 MW megawatts =10^ 6 watts. What is the efficiency of this plant? (Take 9cool=30 MJ/kg)

i think the answer is tomato juice? not entirely sure though

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

there are no components of a physical goal mentioned on the list of choices that you've provided.