The specific heat capacity of iron is 450.5. A 15.5 kg block of iron with an initial temperature of 20 degrees Celsius is heated with 250 J. What will
the final temperature of the iron be?

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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i don't understand. explain it clearly

answer: 31, 5556. 952 seconds