【单选题】【单选】The tension on an anchor cable increases so that angle of the catenary to the seabed at the anchor reaches 10°. How will this affect the anchor in sandy soil?
【单选题】A 20-g bead is attached to a light 120-cm-long string. This bead moves in a horizontal circle with a constant speed of 1.5 m/s. What is the tension in the string if the angle α is measured to be 25°? ...
【简答题】A mild steel sample of 2mm in thickness and 10 mm inwidth is under biaxial tension, the tension force at both direction is 30kgf, assume the poisson's ratio ν=0.25, what is the value of coefficient o...
【简答题】A) Rainfall has been increasing steadily in Yoknapatawpha County since 1995. B) In that year, annual rainfall was 32 inches. C) By 2008, it was 40 inches, with an increase each year between 1995 and 2...
【单选题】In the 17th century, Otto von Güricke, a physicist in Magdeburg, fitted two hollow bronze hemispheres together and removed the air from the resulting sphere with a pump. Two eight-horse teams could no...