Two metal rods of equal length-one aluminum, the other stainless steel-are connected in parallel with a temperature of 18.0 ∘ C ∘C at one end and 116 ∘ C ∘C at the other end. Both rods have a circular cross section with a diameter of 5.00 cm

When a neutral charge, comes into contact with a positive charge they repel each other nothing happens the neutral charge becomes negative they attract each other

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )