The amount of heat when 3.8 kg of ethylene glycol cools from 35 C to 20 C c= 2200 j/kgK (C=273 K, therefore, 1C = 274 K)

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings