People have been using the milk that cows produce for hundreds of years. For generations, people milked cows by hand. Generally, they could milk six cows per hour. However, once machines came along, they changed the dairy industry. Some people think milking by machine seems mean or cold. But today’s milking process is superior.
During the revision process, the writer will most likely improve the argument by adding which sentence at the end?
A. Refrigeration started in 1880, making milk more available.
<u>B. Today's farm machines can milk more than 100 cows an hour.
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C. The majority of farms today are still owned and run by families.
D. "We've had a dairy cow for years," local farmer Pat Cooper said.
Answer:
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Explanation:
The expression of the weight of the bar is given by,
W=mg
Here, g is the acceleration due to gravity
Substitute all the values
W=(18kg)(9.81m/s2)=176.58N
The expression of the angle θ
by using free body diagram is given by,
tanθ=ACBO+OC
Substitute all the values
tanθ=(1.3m)(1.2m)+(0.75m)θ=tan−1(1.31.95)θ=33.69∘
Take moment about point O and obtain the value of tension T.
∑MO=0Tsinθ×AC+W×(AO2cosθ1)−Tcosθ×CO=0
Substitute all the values
Tsin(33.69∘)×(0.75m)+(176.58N)×(1.5m2cos60∘)−Tcos(33.69∘)×(1.3m)=0T×0.416m+66.22N⋅m−T×1.081m=0−T×0.665m+66.22N⋅m=0T=−66.22N⋅m−0.665mT=99.58N
Her experience in Ellis Island
Explanation:
- One young woman examined Catherine's hair when she went to Ellis Island. Catherine had braided her hair beautifully as she was going to meet someone.
- The woman unbraided her hair and found something clipping her hair and cut it here and there. Catherine started to cry and questioned the woman about the hair cut.
- The woman told Catherine that if she is going to be in America, she has to keep her hair clean.