CBereken de frequentie van de toon: – in figuur 9A.
Je hebt 1 trilling in 0,01 seconde.
In 1 seconde gaan 100 keer zo veel trillingen als in 0,01 seconde.
De frequentie is dus × = Hz.

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

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.