n first gear, or low gear, an automobile's engine runs about three times as fast as the drive shaft. In second gear, the engine
1 answer:
Answer:
Consider the following cases
Case 1: In n first gear, an automobile's engine runs about three times as fast as the drive shaft.
So, if Speed of Engine = 1,850 r.p.m
Then Speed of Drive Shaft r.p.m
Case 2 : In second gear, the engine does not have to run as fast; usually it runs about 1.6 times faster than the drive shaft.
So, if Speed of Engine = 1,850 r.p.m
Then Speed of Drive Shaft r.p.m
Case 3: Finally, in third, or high gear, the engine runs at the same speed as the drive shaft.
So, if Speed of Engine = 1,850 r.p.m
Then Speed of Drive Shaft is also equal to 1,850 r.p.m
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Answer:
208
Step-by-step explanation:
We can find the area of the net by adding up the area of each of the 6 rectangles that make up the net. Since two of each rectangle are the same, we only have to find the area of the 3 different sized rectangles and multiply each by 2.
Rectangle pairs are:
- Left rectangle and right rectangle
- Top rectangle and the rectangle above the bottom rectangle
- Bottom rectangle and the rectangle surrounded by all for sides
Now, let's solve the question.
Left rectangle:
6 x 4 = 24, rectangle has area of 24 squared cm
Top rectangle:
6 x 8 = 48, rectangle has area of 48 squared cm
Bottom rectangle:
4 x 8 = 32, rectangle has area of 32 squared cm
Add up the areas:
(24 x 2) + (48 x 2) + (32 x 2) = 208
The rectangle has a surface area of 208 squared cm