Question 20 (1 point) Listen A 1.26 m aluminum rod increased by 2.0 mm when its temperature was raised by 75 °C. Calcula

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Question 20 1 Point Listen A 1 26 M Aluminum Rod Increased By 2 0 Mm When Its Temperature Was Raised By 75 C Calcula 1 (249.09 KiB) Viewed 42 times

pls answer it with solutuon using a paper and pen.
pls use grade 12 calcukations with measurement
pls try and answer both, i dont have anymore questions left and i badly need it. plss pls
Question 20 (1 point) Listen A 1.26 m aluminum rod increased by 2.0 mm when its temperature was raised by 75 °C. Calculate the coefficient of linear expansion (a) of the aluminum rod. Give answer to one decimal place, and note the scientific notation given. A A - x10-5 °C-1 Question 21 (3 points) Listen A copper tube has a length of 100.00 cm at 20 °C. If the tube is heated to a temperature of 50 °C, what is the new length (Lt)? - A copper = 17 x 10-6 °C-1 Start by finding the change in temperature. AT =