A 50 kg crate rest on a horizontal surface for which the coefficient of kinetic faction is 0,3. If the crate is subjected to a 400 N towing force, determine the velocity of the crate in 3 s is starting from rest.

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

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.

The substances that are necessary for producing of certain hormones and that store and transport vitamins