a chord 30 cm long is 20 from the centre of a circle calculate the length of a chord which is 24 from the centre​

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

Energy flows from the producer level to the level. is called