A0.345 kg mass of tungsten at 130.0c is placed in a 0. 502 kg of water at 22.0c the the mixture reaches equilibrium at 28.6c calculate the specific heat of tungsten (specific heat of water = 4180 j/kg c). formula maca∆tb = mbc∆tb

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.

What is part of a line has one endpoint and continues in one direction?