Apeach pie is taken out of the oven at 5 : 00 pm and its temperature is measured to be c. at 5 : 10 pm its temperature has decreased to c; at 5 : 20 pm, it is at c. what is the temperature of the room?

An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?

How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57×10−21 newtons?