NAMING BRAINLIEST❗️:A block of mass 5 kg is being pulled by a string to the right at an angle of 53 degrees above the horizontal. It accelerates 7 m/s^2. Find the normal force on the box.

What defines the mass number of an isotope? a. the sum of the neutrons and protons b. the sum of the neutrons and electrons c. the number of neutrons d. the number of protons

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87