What is the total amount of heat needed to change 1,626 g of an unknown substance at 17.2 °C to 264.6 °C? The specific heat of the substance is 0.371 J/g•°C. Round to the nearest whole number.​

Well the magnitude of its acceleration related to that car starts with the oil change like when you have to change the oil in your car you have to make sure that your precious car is starting really propley and very well

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other