Help What are 4 safety considerations for making a cardboard spinner. No links are allowed

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system