3 strings are attached to a small metal ring,2 of the strings make an angle of 30° with the vertical and each is pulled with a force of 10 newton what force must be applied to the third string to keep the string stationery​

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)