10 water does not drip through an open
umbrella of silk unless the inside of the
umbrella is touched. which of the following
phenomena is responsible for this?
a. surface tension.
b. hydrostatic upthrust
c. viscosity.
d. diffusion
e. osmosis.
waec

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

What is the magnitude of the resultant vector round your answer to the nearest tenth

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present