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With regard to the physics of power systems used operate robots, which statement or statements are most correct?

With regard to the physics of power systems used operate robots, which statement or statements are most correct? Correct Answer pneumatics involve the compression of air

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The 2018 Nobel Prize in Physics has been awarded in laser physics for the optical tweezers and their applications to biological systems for the method of generating high-intensity, ultra-short optical pulses. Which of the following verifies the given statement? I:  The 2018 Nobel Prize in Physics has been awarded in laser physics for the optical tweezers. II: The 2018 Nobel Prize in Physics has been awarded for applications of the optical tweezers to biological systems. III: The 2018 Nobel Prize in Physics has been awarded for the method of generating high-intensity, ultra-short optical pulses using the optical tweezers.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: 1. All boys are robots. 2. All girls are robots. Conclusions: I. Some robots are boys. II. No robot is a girl. III. Some robots are girls.
A question is followed by 2 statements. Study the following statements carefully and state whether they are sufficient to answer the question. A student appears in an examination where his marks in biology is 20 marks more than what he got in Physics. Find his marks in biology? Statement I – Average marks of Physics and Chemistry is 71.5. The ratio of marks of Practical and Theory in Physics is 6 ∶ 5 and in chemistry, it is 15 ∶ 7. Statement II –Ratio of marks obtained in the theory exam of physics and chemistry is 1 ∶ 2. The ratio of marks of Physics and Chemistry is 5 ∶ 8.
A wall of 100 meter can be built by 7 large robots or 10 small robots in 10 days. How many days will 14 large robots and 20 small robots take to build a wall of 600 meter?
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All men are robots. All robots are machines. Conclusions: I. All machines are men. II. Some robots are men.
A junior college inducts students based on the following criteria — 1. Students who scored above 75% in Physics, 85% in Mathematics and 70% in Chemistry. 2. Students who scored at least 60% in English. 3. Students who are good in a sport or play a musical instrument or know a dance form. Which student among the following will the college definitely take? A. Shakti with 80% in Physics, 65% in Chemistry, 85% in Mathematics, 61% in English and plays veena. B. Megha secured 80% in Physics, 87% in Mathematics, 70% in English, 75% in Chemistry and is a singer. C. Sheela secured 78% in Physics, 71% in Chemistry, 87% in Mathematics, 75% in English knows Manipuri folk dance. D. Mallika secured 70% in Chemistry, 70% in Mathematics, 85% in Physics, 65% in English and plays basketball.
The criteria for selecting a Physics Teacher have been given as under:  The candidate must:  1. Have a masters degree in Physics with at least 60 percent marks. 2. Be a graduate in Physics with atleast 65 percent marks. 3. Be between 25 and 35 years old as on 01/01/2020. 4. Should have work experience of atleast 5 years. The following exceptions apply: A. If a candidate meets all other criteria except 4 above, the candidate will be referred to the Principal. B. A candidate whose age is more than 35 years but less than 40 years will be referred to the Vice Principal. Ritika has done her masters from XYZ University in Physics. She topped her batch with 80 percent marks. She did her B.Sc in Physics from ABC College. She is 39 years old. She has been teaching in MNO School for last 7 years. What decision should be taken about this candidate? 
Variation of electrical resistivity $$\rho $$ with temperature T of three solids is sketched (on different scales) in the figure, as curves P, Q and R.
Which one of the following statements describes the variations most appropriately?
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Which of the following statements with regard to Almond's characterisation of political system are correct? (i) All political systems have political structures. (ii) All political systems do not perform the same functions. (iii) All political systems are not multi-functional. (iv) All political systems are mixed systems in the cultural sense. Choose the correct answer from the code given below :
Humans and robots can both perform a job but at different efficiencies. Fifteen humans and five robots working together take thirty days to finish the job, whereas five humans and fifteen robots working together take sixty days to finish it. How many days will fifteen humans working together (without any robot) take to finish it?