Problem: (1) Central forces that are conservative can always be expressed as the negative gradient of a potential energy :
(2) Conservative central forces can always be expressed as the potential gradient of negative energy .

Do (1) and (2) mean the same thing?

OPTIONS:
- no
- yes
A: no

Please check if these have the same meaning.
This provided engine lube oil , seawater coolant and also pumped a bilge pump for the lifeboat .
This provided engine lubricating oil , seawater coolant and also pumped a bilge pump for the lifeboat .
OPTIONS:
- no
- yes
Answer: yes

Problem: It is currently being represented by Senator Christy Zito , Republican of Rogerson , Representative Megan Blanksma , Republican of Hammett , representative Bert Brackett and Republican of Hammett .
It is currently being represented by Senator Bert Brackett , Republican of Rogerson , Representative Christy Zito , Republican of Hammett , and Representative Megan Blanksma , Republican of Hammett .
OPTIONS:
- no
- yes
-+-
A: no

She was launched on 28 July 1941 and completed in August .
It was completed on July 28 , 1941 and launched in August .

Are these two sentences paraphrases of each other? OPTIONS:
- no
- yes
no

1. Ranger was a cheerful rococo painter , whose characters were gently painted in graceful positions with optimism and classic colors .
2. Ranger was a cheerful Rococo painter whose characters were softly painted in graceful positions with optimism and classic colors .
OPTIONS:
- no
- yes

yes

1. Condon said she wanted to give Suzanne a Valentine 's Day card .
2. Suzanne has said that she wanted to give Condon a Valentine 's Day card .
OPTIONS:
- no
- yes
no