A200 kg object is going 4 m/s. find it’s kinetic energy

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

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.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant