If you were given distance & period of time, you would be able to calculate the speed.
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Answer:
c. Joints allow the roadway to expand and contract as cars put force on the bridge
Explanation:
The reasons why joints are allowed on roadway is to accommodate the contraction and expansion of the road as cars put force on them.
- Most materials used in making roadways are susceptible to expansion and contraction.
- When a measure of force is applied their length either increases or decreases depending on the type of force.
- To accommodate these changes, joints are placed in roadways
<span>The number in front is the number of molecules (or atoms) taking part in the (balanced) chemical reaction equation.</span>
Wave D has the same wavelength as wave A, but the amplitude is lower. The answer is Wave D.
Beats are generated by two interfering waves when they have slightly different frequencies.
