A proton traveling to the right at an angle of 10 degrees (Calculate Sin 80) to the x-axis enters a region where there is a magnetic field of magnitude 2.5 T directed upward along the y-axis. If the proton experiences a force of 1.5x10 ^7 m/s, find the speed of the proton

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

What are similarities and differences of reflection, refraction, diffraction and absorption?

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?