English translation To love and to be loved is the great happiness

To love and to be loved is great happiness

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1. English translation Please translate this sentence for me and explain the meaning and other usages of as Don't eat snacks too close to meal times as this discourages you from eating your main meals
2. English translation A skier travelling in a straight line up a hill experiences a constant deceleration.At the bottom of the hill,the skier has a speed of 16m/s and ,after moving up the hill for 40 s,he comes to rest. Find: a.the deceleration of the skier. b.the distance from the bottom of the hill to the point where the skier comes to rest.
3. English translation John kept silent about the subject they discussed After several years of study, Jane Eyre became more knowledgeable I'm not surprised at her rude remarks
4. English translation If the wrench does not turn when the load is applied to the handledetermine the torque or moment applied to the bolt and the force of the wrench on the bolt.
5. English translation I want to know if you will congratulate them on their achievements We have to give up our plan because the island can only be reached by boat later I want to wish him all the best in his new job I hope to meet my old friend at the meeting He suggested that we bring enough food for the holiday 6. She works hard in order to be recognized by her living father 7. The company has made as much profit as last year 8. It will be more convenient for me to live in this community
6. English translation 1. You will succeed sooner or later 2. She is sure to be honored for this work 3. She had a healthy baby last night 4. His heart attack didn't stop him from going to class the next day 5. Understanding begins with practice 6. Why he did it is still a mystery =Don't use translation net to deal with me, I don't know It's due tomorrow
7. Ask a mechanical physics question Two people are pulling a canoe on a friction surface, person a pull at 60N {20} and person B pull at 60N {40}, calculate the force Please help my friends to tell me the complete steps in Chinese,
8. An English physics problem A quarterback passes the football downfield at 20m/s .It leaves his hand 1.8m above the ground and is caught by a receiver 30m away at the same height What is the maximum height of the ball on its way to the receiver?
9. A physics problem in English turner's treadmill runs with a velocity of -1.2m/s^2 and speed up at regular intervals during a half-hour workout.after 25 min,the treadmill has a velocity of -6.5m/s.what is the average acceleration of the treadmill during this period?
10. An English physics problem A 4kg body is placed on horizontal ground.The coefficient of dynamic friction between the body and the ground is 0,2.The object is acted upon by a force of 30 N that encloses an angles of 20 whith horizontal.Find the friction force and the acceleration of the body.
11. English translation 5 English multiple-choice questions, villain asked people to answer online, thank you uncle, aunt, grandmother, grandfather's pull 1 Improper food can damage your hair,[ ] A so can the stress in life B so the stress in life can C neither can the stress in life D neither the stress in life can 2 I can not sleep because it is [] A too much hot B much too hot C hot too much D hot much too 3 Not until I began to work[] how much time I had wasted. A didn't I realize B did I realize C I didn't relize D I realized 4 So[] that no fish can live in it. A the lake is shallow B shallow the lake is C shallow is the lake D is the lake shallow 5 Little[] about his own safety,though he was in great danger himself. A does he care B did he care C he cares D he cared And what kind of topic is this First of all, thank you for your answers. Don't rush to answer. Let's see if you have any questions.
12. What is the quiet English word? As above
13. As shown in the figure, the uniform ball with radius R and mass m is placed against the vertical wall, and there is a wood block with thickness h and mass m at the bottom left. If the friction is not considered, how much horizontal force F is used to push the wood block to make the ball leave the ground? What is the pressure on the ground?
14. Physical mechanics of motion A car with a mass of 5 tons and a trailer with a weight of 1 ton is driving at a constant speed of 10 meters per second on a straight road. Suddenly, the trailer is uncoupled, but the traction of the car remains unchanged. It is only found after driving for 10 seconds. The answer is 110 meters
15. After braking, the car starts to move in a straight line with uniform deceleration. The distance from starting braking to passing at rest is s. when its speed is reduced to half of the initial speed, the driving distance is s______ ．
16. What does t mean in the force analysis of pulley?
17. As shown in the figure, pulley a weighs 40n, pulley B and pulley C each weighs 20n, and weight g = 200N. Solution: regardless of the influence of stay wire mass and pulley rotation friction, the free end of the rope can just move downward at 60mm / s under the action of force F, what is the force F? How much distance can weight g rise in one minute? (the rope is long enough)
18. Junior high school physics mechanics part -- pulley problem It is composed of four identical pulleys and two identical ropes as shown in the figure (it will not be uploaded. Roughly, two pulley blocks a and B are composed of a movable pulley and a fixed pulley. There are two sections of rope on the movable pulley of a and three sections of rope on the fixed pulley of B. two weights are hung on the two pulley blocks). The pulley blocks a and B lift the two identical hooks by 10cm respectively, If the friction between the rope and the pulley is not taken into account, the device is more labor-saving (select "a" or "B"). The mechanical efficiency of device a is the mechanical efficiency of device B (select "higher", "lower" or "equal") Second, my calculation is as follows According to the formula of mechanical efficiency: η= W is useful General manager w =G divided by FN The denominators of a and B are the same, and the n of a is small, so the efficiency of a should be greater than that of B But why is the answer equal What's wrong with me? Which master will guide me
19. The direction of the force is downward Each pulley of the pulley block weighs 40n. Regardless of the rope weight and shaft friction, Xiaoming increases the 600N weight by 1m at a uniform speed. How much work does he do?
20. When can the holistic method and the isolation method be used, and what are the conditions for their use When do several objects have the same acceleration