Answer:
Thermometer will read 26 degrees Celsius.
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The mass m of the object = 5.25 kg
<h3>Further explanation</h3>
Given
k = spring constant = 3.5 N/cm
Δx= 30 cm - 15 cm = 15 cm
Required
the mass m
Solution
F=m.g
Hooke's Law
F = k.Δx
![\tt m.g=k.\Delta x\\\\m.10=3.5\times 15\\\\m=5.25~kg](https://tex.z-dn.net/?f=%5Ctt%20m.g%3Dk.%5CDelta%20x%5C%5C%5C%5Cm.10%3D3.5%5Ctimes%2015%5C%5C%5C%5Cm%3D5.25~kg)
The weight of the car in the picture of the computer screen is 9,800 Newton's.
Answer:
send the wagon down a higher hill