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- if the cycle time of the product is more, then that product output will be......... a. Minimum b. Medium c. No output obtained d. MaximumA thin long bar with axis of rotation through one end has a mass of 0.500 kg and a length of 10 cm. If your angular velocity is 25 rad/s, determine your rotational kinetic energy.Consider the two vectors A = 5i - 6j + 2k and B = 31 – 5k - What is the dot product A B ? -25 25 -45 O None of the answers 45 O-5 O-2
- Determine the a.) Dot Product and b.) Cross product of the following given vectors. Given: A = 5i – 2k + 2j B = 2i + 1k + 2j %3D Required: а.) А . В b.) Ах В Solutions and Answers:2. A 59 kg person climbs up the stairs with a height of 5.5 m. a.How much work does the person do? b.What is the increase in GPE of the person at this height? c.Where does the energy come from to cause this increase in GPE?What is the difference between when work is done by a system and when work is done on a system? a. Work done on a system causes an increase in the energy of the system. O b. Work done by a system causes an increase in the energy of the system. O c. С. None of them makes ay difference in the energy of the system.
- 4. Use the alternative form of the dot product to find u. v. ||u|| = 20, ||v|| = 50, and the angle between u and v is 5π/6.10. The dot product of a, a, is equal to: а. 1 b. 0 C. az d. -1Which of the following statements are FALSE? A. Energy is a vector physical quantity. B. Energy is always required to do work. C. Total mechanical energy can never be zero. D. When law of conservation of mechanical energy is invoked, there can never be a waste energy in an ideal system. E. When law of conservation of mechanical energy is invoked, there can never be a waste energy in a real-world system. F. Kinetic energy can be negative. G. Potential energy can be negative. H. Work is equivalent to the negative change in kinetic energy. I. Work is equivalent to the negative change in potential energy. J. In a conservative system where only gravitational force acts, the total mechanical energy is constant at every point of the motion. K. In a non-conservative system where certain external forces may act, the total mechanical energy is not constant at every point of the motion. L. The entire universe may be considered as a closed system where the total energy is constant. choices O…
- Quèstion 11 dw If w = x2y sinz- 3zexy, find dz O a. dw =x?y cosz -exy dz O b. dw =2x2y cosz -exy dz Oc. dw =2x2y cosz - 3exy dz O d. dw =x2y cosz - 3exy dz A Moving to another question will save this response.Determine the a.) Dot Product and b.) Cross product of the following given vectors. Given: A = 5i - 2k + 2j B = 2i + 1k + 2j Required: a.) A • B b.) A x B Solutions and Answers:Question 15 Suppose that Å = 2i + j, B = i- 4j + k, and Ĉ = j+k. À: (B × Č)? What is A -10i -j B 10i + j -10 -11