Answer:
1) true 2)False 3)false 4)True 5)False 6)False
Explanation:
If the metal plate that has a circular hole with radius R. And if we raise the temperature of this plate the radius of the hole will increase.
Answer:

Explanation:
The average speed is defined as:

Using the equations for uniformly accelerated motion, we calculate the runner's acceleration:

Now, we can calculate the distance that the runner travels:

Finally, we calculate the runner's average speed:
