The density of iron is 7.87 g/ml. what is the mass of a 3.00 cm × 4.00 cm × 1.00 cm block of iron?

If the force on an object is in the negative direction, the work it does on the object must be [2 points a) negative. b) positive c) the work could be either positive or negative, depending on the direction the object moves

What is the magnitude of the resultant vector round your answer to the nearest tenth

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