If 2 kilograms of water is to be heated from 24.0°C to 100.0°C to make a cup of tea,
how much heat must be added? (Water's specific heat is 4186 J/kg°C)

An observer that stands still as the electron moves by him, will observe

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?