Form 21 (21-22) / 30 of 30 A screwdriver can be used as a lever to pry open lids. A screwdriver is used to open a paint lid. If an effort force of 50 N is
applied to the screwdriver, and the mechanical advantage of using that screwdriver is 10, what is the resulting resistance
force on the lid?
A 500 N

B 5N
C. 40 N

D. 0.2 N

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Which one of the following research methods can show cause and effect

Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.