There is a ladder against the wall.有一架梯子靠在墙上。[精讲辨析]against是介词,意为“反对;和……交战(竞争、比赛);不利于;依靠着”,后接名词、代词或动名词作宾语。其反义词为for,意为“赞成;支持”。相关短语:play against与……打对抗赛。[活学活用]根据汉语意思翻译句子。1. 没人反对这个提议。No...
【题目】6. I got a ladder(梯子) from the shed in the garden, and put it a ___ the wall. 相关知识点: 试题来源: 解析 【解析】【答案】against 【核心短语/词汇】against the wall:倚着墙 【翻译】我从花园的棚子里拿了一把梯子,并把它 倚墙放着。 【解析】根据首字母a和语境可知句意为"我...
Problems in which a ladder is leaning against a wall making some angle; ex-1 The ladder is leaning against the wall makes an angle of 60 ^0 with the ground.
Discusses the statics of a ladder leaning against a rough wall in determining the reaction forces of a statically indeterminate structure. Difficulties in calculating reaction forces; Factors that determine the equation of equilibrium; Treatment of frictional force.Mendelson...
结果1 题目 A 4 m ladder leans against a wall. The foot of the ladder makes an angle of 63° with the ground. How far up the wall does the ladder reach?() A.1.8 m B. 3.6 m C.4.5 m D. 7.9 m 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
A ladder leaning against a wall has a slope of 7. how many feet in the horizontal direction correspond to a rise of 35 ft?Slope:The slope of a line is by how much the line is rising according to the run. If {eq}x {/eq} and ...
Solution:In the figure, AB is a vertical wall i.e.LABC= 90°AC = length of ladder = 25 mBC = the distance from the foot of the wall = 24 mAB = height of the wallIn the right angled AABC,AC2 = AB2 +BC2[using Pythagoras theorem](25) = AB2+(24)3or,625 =AB2 +576or,or,AB2...
A 17-foot long ladder is placed against a wall and then the base of the ladder is pulled away from the wall. As the base of the ladder is pulled away from the wall, the top of the ladder slides down the wall (and the length of the...
Answer to: A 20 foot ladder is leaning against a wall the base of the ladder is 7 feet away from the wall, how high up the wall will the ladder...
10 Fig. 10.1 shows a uniform ladder leaning against a wall. The bottom of the ladder is1.0 m away from the wall. The top of the ladder is 4.0 m above the ground. F -ladder4.0m NOT TO SCALE-wall man1.0m pivot Fig. 10.1The weight of the ladder is 110 N.(a) On Fig. 10.1, dr...