: Hai quả cầu m1 = 200g, m2= 100g treo cạnh nhau bằng hai dây giống nhau. Nâng quả cầu m1 lên h = 4,5 m rồi thả nhẹ. a. Tính vận tốc m1 lúc sắp va chạm vào m2.
b. Tính vận tốc hai quả cầu sau va chạm, biết va chạm giữa chúng là va chạm mềm.
c. Sau va chạm, hai quả cầu được nâng lên độ cao cực đại bằng bao nhiêu?

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

The bubba chump shrimp company processes and packages shrimp for sale to wholesale seafood distributors. the shrimp are transported to the main plant by trucks that carry 1,000 pounds (lb) of shrimp. once the continuous flow processing of the shrimp begins, no inventory is allowed in buffers due to spoilage and all of the shrimp must be processed within 12 hours to prevent spoilage. the processing begins at the sorter, where the trucks dump the shrimp onto a conveyor belt that feeds into the sorter, which can sort up to 500 lb per hour. the shrimp then proceed to the desheller, which can process shrimp at the rate of 400 lb per hour. however, after 3 hours and 45 minutes of processing, the desheller must be stopped for 15 minutes to clean out empty shrimp shells that have accumulated. the veins of the shrimp are then removed in the deveining area at a maximum rate of 360 lb per hour. the shrimp proceed to the washing area, where they are processed at 750 lb per hour. finally, the shrimp are packaged and frozen. what is the daily process capacity of the processing plant (excluding the packaging and freezing)?

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?