A force of 250 N is applied to an object that accelerates from rest to 10.0 m/s in 2.0 seconds. What is the mass of the object?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.