An object moving with a speed of 5m/s comes to rest in 10s after the brakes are applied . What is the initial velocity?
1 answer:
You might be interested in
9* m
Explanation:
Step 1:
We are given the initial length of the Pyrex glass dish at a particular temperature and need to calculate the change in the length when the temperature changes by 120° C. The coefficient of linear expansion of Pyrex is provided.
Step 2:
Change in length = Coefficient of linear expansion * Change in temperature * Initial length
Step 3:
Coefficient of linear expansion = 3* /°C
Change in temperature = 120°C = 120 K
Initial length = 0.25 m
Step 4:
Change in length = 3* * 120 * 0.25 = 9*
m
Answer:
B. 3.1 × 10^5 V
Explanation:
