An iron weight, suspended by a string, is motionless. The tension in the string is 4. 75 newtons. What is the mass of the iron weight? A. 0. 485 kilograms B. 4. 75 kilograms C. 9. 65 kilograms D. 10. 0 kilograms E. 15. 5 kilograms.

Would corn syrup, molasses, or pancake syrup make a good lubricant in a car engine? explain your answer.

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?