Given:
25.0 m/s -speed of his car
2.0 m/s^2 for 5s - acceleration
10s- constant velocity
Asked: total distance traveled during the entire 15 seconds.
( see attached file for the solution)
If the first sentence of the question is true, then both a and c are correct. That's (d).
Note: The mechanical advantage of the rig in the picture is actually only 2, but I guess we can't stop to discuss that right now.
Answer:
<em>The chef can make 8 casseroles</em>
Explanation:
<u>Units Conversion</u>
We need to recall 1 gallon = 16 US cups.
A casserole needs 1 cup of milk, and the chef has 0.5 gallons of milk. Those 0.5 gallons are equivalent to 0.5*16 = 8 cups, thus the chef can make 8 casseroles.
Answer:
Residence time = 5000 years
Explanation:
Given that ;
the mass of oxygen in the atmosphere = 1.4 million gigatons = 1.4 × 10⁶ gigatons
Major sources of oxygen to atmosphere include:
Photosynthesis by plants on land = 125 gigatons/yr
Photosynthesis by plants in ocean = 155 gigatons/yr
Total rate of oxygen = (125 + 155) gigatons/yr
= 280 gigatons/yr
the residence time of oxygen in the atmosphere is therefore calculated by the formula:
Residence time =
Residence time =
Residence time = 5000 years