Using the information from example 28.1, how much fainter an object will you have to be able to measure in order to include the same kinds of galaxies in your second survey? remember that the brightness of an object varies as the inverse square of the distance.

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation

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

Is the number of complete movements of a wave per second.