Encontrar Ɵ entre los siguientes vectores:
A = -3i + 4j – 5k y B = 5i + 7j – 8k

Agalvanometer has an internal resistance of 100 ω and deflects full-scale at 2.00 ma. what size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 ma, and how should this resistor be connected to the galvanometer?

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?