0.3 Suppose the average daily metabolic rate for certain types of animals can be expressed as a function of mass by r= 120.9m where m is the mass of the animal (in kilograms) and r is the metabolic rate (in kcal per day). " dm dr a. If the mass of an animal is changing at a rate of find dt " dt . dr dt b. Determine for a 100-kg animal that is gaining mass at a rate of 3 kg per day.

One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters.   c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube?  d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?

UPS ships a lot of boxes. There are different ways to measure how big is a box. For the following two boxes which box - box 1 or box 2 - do you think is "bigger" and why. You must pick only one of the boxes as the bigger box. Box 1: Dimensions: 18"×24"×12" that weighs 7.7 lbs Box 2: Dimensions: 24"×36"×6" that weighs 7.7 Ibs.

I am stuck with this problem can you please help me to solve step by step and give answer in exponential format and 3 significant figures. Example of exponential format And 3 Significant figures 6.96e3