Ahorizontal force of magnitude 41.6 n pushes a block of mass 4.03 kg across a floor where the coefficient of kinetic friction is 0.614. (a) how much work is done by that applied force on the block-floor system when the block slides through a displacement of 4.38 m across the floor? (b) during that displacement, the thermal energy of the block increases by 42.8 j. what is the increase in thermal energy of the floor? (c) what is the increase in the kinetic energy of the block?

According to rutherford's nuclear theory, most of the volume of an atom is , so the volume of a hydrogen atom cannot be mostly due to the proton. according to rutherford's nuclear theory, the core of an atom (nucleus) contains most of of an atom and is , so the majority of the mass of a fluorine atom cannot be due to its nine electrons. according to rutherford's nuclear theory, the number of negatively charged particles outside the nucleus the number of positively charged particles within the nucleus, so a nitrogen atom has 7 protons and 7 electrons, while a phosphorous atom cannot have 15 protons and 150 electrons. word bank: dense, empty space, more than, mass, particles, the same as, less than, positively charged, negatively charged