An advertisement claims that a centrifuge takes up only .127m of bench space but can produce a radial acceleration of 2400g at 4000 rev/m. calculate the required radius of the centrifuge.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

Which is not true about oxygen-17 and oxygen-18?