结果1 题目 6. A solid sphere of radius 6 cm, is melted down and drawn out into a long cylindrical wire of uniform thickness of 0.2 cm. Find the length of the wire. 288 m 相关知识点: 试题来源: 解析 288 m 反馈 收藏
百度试题 结果1 题目A sphere with radius r is melted to form a cylinder of radius r and height h. Determine h in terms of r. 相关知识点: 试题来源: 解析 43πr3=πr2h 43r=h 反馈 收藏
We will do this by comparing the volumes of the sphere and the cones. Step 1: Calculate the volume of the sphere.The formula for the volume V of a sphere is given by: V=43πr3 Where r is the radius of the sphere. Here, the radius r is 14 cm. V=43π(14)3 Calculating 143: ...
The ball has a radius to the outside surface of 6 cm. What is the approximate volume of rubber used to make the ball? A solid sphere of radius 3 cm is melted and then recast into small spherical balls each of dia...
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In addition, Na-ion batteries (NIBs) have recently received significant attention owing to their low cost and abundant global reserves compared to those of Li-ion batteries (LIBs)5–10. However, Na ion have a larger ionic radius and molar mass than Li ion; hence, NIBs exhibit lower ...
Calcia-Magnesia-Alumino Silicate (CMAS) is a form of molten siliceous residue generated at elevated temperatures within aeroengines. CMAS adheres to the surface of thermal barrier coatings (TBCs) and has the potential to cause significant damage to engin
Current manufacturing approaches can be grouped into the two following categories: either the spherical probe tip is attached to a shaft, or the end of a probe shaft is melted to produce a probe tip [45]. Suitable microspheres are commercially available, and at a laboratory scale, production ...
[28]. A tip stylus with a Rockwell-C diamond cone with a 120° opening angle and a 200 µm spherical tip radius and a linear drive indenter (UMT2-Bruker) was used, and the wear track volume (DV) analysis was performed using a 3D-profilometer (CCI-MP-3D Taylor-Hobson). In this ...
having a third specific gravity SG3; wherein at least two of SG1, SG2, and SG3 is less than 1.13 g/cc; and wherein the golf ball has a coefficient of restitution (CoR) of at least 0.810, a specific gravity SGB of less than 1.00 g/cc and an initial velocity of at least 250 ft...