phu upp
- elasticity 27. constant 28. Hooke’s 29. stress 30. stress 31.stress 32. effort 33.efficiency 34.watt 35.watt 36. watt 37. one joule 38. stress 39. power
Question No.2 –True or False
Are the following statements True or False?
- Work is a vector quantity.
- The product of force and distance travelled is work.
- The potential energy can be transformed into electrical energy.
- Energy and power have the same unit.
- Power is more fundamental than energy.
- A machine of high power should be used if a lot of work has to be done quickly.
- C is the mid-point of AB, A if the point (-3,-2), and B is the point (2,8).
What is the slope of BC? - Given the points D(-4,6), E(1,1), F(4,6), find the slopes of DE and EF. Are D,E and F
collinear ? Why?
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