WHERE TO VIEW SCIENCE FOR CLASS 7 CONCEPT LEARNING LIKE CLASS 8,9,10. KINDLY LET ME KNOW. PLEASE PROVIDE ME ATLEAST CLASS 7 SCIENCE CONCEPT LEARNING
can you pls. help me solve this problem: Sugar juice is filtering through a conical funne 20cm deep and 12 cm,across at the topinto a cylindrical container whose diameter is 10cm.when the depth of the juice in the funnel is 10cm.its levelis falling at the rate of 1.25 cm/min. How fast is thelevel in cylinder rising? Thank you l
silver coin diameter is 40 mm, and surface area 27.70 cm 2 . if the coin divided to coins with 1 nm diameter; what is the surface area for all these coins? how many times greater than the surface area of the large one?