网友您好， 请在下方输入框内输入要搜索的题目：

题目内容 （请给出正确答案）
单选题
What is the volume of a sphere whose surface area is 100π square units?
A

(100/3)π cubic units or units3

B

(500/3)π units3

C

160π units3

D

(375/4)π units3

E

520 units3

参考答案

参考解析
解析：
The formula for the surface area of a sphere is SA = 4πr2. 100π= 4πr2, 25 = r2, 5=r. The volume is, therefore, (4/3) πr3 = 4/3π(5)3=(4/3)π(125) =(500/3)π
更多 “单选题What is the volume of a sphere whose surface area is 100π square units?A (100/3)π cubic units or units3B (500/3)π units3C 160π units3D (375/4)π units3E 520 units3” 相关考题
考题 中国有960万平方公里的陆地国土，居世界第三位。A、China has a land area of 9.6 million sq. km, the third place in the world.B、China has a land area of 9.6 million sq. km, marking it the third-biggest country in the world.C、China has a land area of 9.6 million sq. km, which was the third place in the world.D、China has a land area of 9.6 million sq. km, which ranked the third place in the world.
查看答案
考题 阅读以下说明和C++程序，将应填入(n)处的字句写在对应栏内。【说明】以下程序的功能是计算正方体、球体和圆柱体的表面积和体积并输出。程序由4个类组成：类cube、sphere和cylinder分别表示正方体、球体和圆柱体；抽象类 container为抽象类，提供了两个纯虚拟函数surface_area()和volum()，作为通用接口。【C++程序】include＜iostream.h＞define pi 3.1416class container｛protected:double radius;public:container(double radius) {container::radius=radius;}virtual double surface_area()=0;virtual double velum()=0;};class cube:(1){ //定义正方体类public:cube(double radius):container(radius){};double surface_area () {return 6 * radius * radius;}double volum() {return radius * radius * radius;}};class sphere:(2){ //定义球体类public:sphere(double radius): container(radius){};double surface_area() { return (3);}double volum() {return pi * radius * radius * radius * 4/3;}};class cylinder:(4){ //定义圆柱体类double height;public:cylinder(double radius,double height):container(radius){container::height=height;}double surface_are a () { return 2 * pi * radius * (height+radius); }double volum () {return (5);}};void main(){container * p;cube obj1 (5);sphere obj2(5);cylinder obj3(5,5);p=obj1;cout＜＜“正方体表面积”(＜＜p-＞surface_area()＜＜end1;cont＜＜“正方体体积”＜＜p-＞volume()＜＜end1;p=obj2;cout＜＜“球体表面积”＜＜p-＞surface_area()＜＜end1;cout＜＜“球体体积”＜＜p-＞volume()＜＜end1;p=obj3;cout＜＜“球体表面积”＜＜p-＞surface_area()＜＜end1;cout＜＜“球体体积”＜＜p-＞volume()＜＜end1;}
查看答案
考题 Which configuration command places interfaces whose IP addresses are between 192.168.0.0 and 192.168.255.255 into OSPF area 0?() A.AB.BC.CD.D
查看答案
考题 请把下面程序补充完整，正确答案是( )。 main( ) { float radius,length,area,volume; printf("Input a radius:"); Scanf("%f",radius); length=2.0*PI*radius; /*引用无参宏求周长*/area=PI*radius*redius; /*引用无参宏求而积*/ volume=PI*radius*radius*radius*3/4; /*引用无参宏求体积*/ printf("length=%.2f,area=%.2f,volume=%.2f\n",length,area,volume); }A．PI=3.1415926B．Const PI=3.14159C．#define PI3.1415926D．Float PI=3.14159
查看答案
考题 The free surface corrections depend upon the dimensions of the surface of the free liquids and the ______．A.volume of liquid in the tankB.displacement of the vesselC.location of the tank in the vesselD.height of the center of gravity of the vessel
查看答案
考题 The free surface effects of a partially full liquid tank decrease with increased ______．A.Density of the liquidB.Placement of the tank above the keelC.Displacement volume of the shipD.Size of the surface area in the tank
查看答案
考题 A VESSEL, OTHER THAN A RESCUE UNIT, DESIGNATED TO CO-ORDINATE SURFACE SEARCH AND RESCUE OPERATION WITHIN A SPECIFIED AREA is known asA.salving vesselB.Co-ordinator surface searchC.MERSARD.the vessel being salved
查看答案
考题 What is the meaning of Metropolitan area? （）A、Around the cityB、City itselfC、The area near the cityD、Big city and its neighbor area
查看答案
考题 what is four ospf area type？
查看答案
考题 What is an advantage of IBM SAN Volume Controller （SVC） virtualization over an HP EnterpriseVirtual Array virtualization？（）A、SVC supports more RAID levels than HP EVAB、SVC has a broader worldwide installation base than HP EVAC、SVC provides SAN virtualization within the storage area networkD、SVC is an IBM virtualization solution for IBM disks in an HP EVA
查看答案
考题 The Cluster Administrator wants to use disk heartbeats as a non-IP network. What Volume Group consideration must be accounted for prior to configuring disk heartbeats？（）  A、 The Volume Group major number must be the same on all nodes.B、 The Shared Volume Group must be created with the Big VG format.C、 The Volume Group must be created as Enhanced Concurrent Capable.D、 The "t factor" must be doubled to create the reserved area for disk hearbeats.
查看答案
考题 Where can a system administrator find information regarding configured physical volumes， volume groups， and logical volumes besides the Volume Group Descriptor Area （VGDA）？（）A、/etc/filesystemsB、/etc/environmentC、Object Data Manager （ODM）D、Logical Volume Control Block （LVCB）
查看答案
考题 问答题What is the volume of a cube whose surface area is 150?
查看答案
考题 单选题What is the area of the base of a triangular pyramid with a volume of 88 cm3 and a height of 16 cm?A 5.5 cm2B 11 cm2C 8 cm2D 16.5 cm2E 22 cm2
查看答案
考题 多选题Studded starfish are well protected from most predators and parasites by ______ surface whose studs are actually modified spines.Aa vulnerableBan armoredCan obtuseDa brittleEa concaveFa rugged
查看答案
考题 单选题What is the meaning of Metropolitan area? （）A Around the cityB City itselfC The area near the cityD Big city and its neighbor area
查看答案
考题 单选题Where can a system administrator find information regarding configured physical volumes， volume groups， and logical volumes besides the Volume Group Descriptor Area （VGDA）？（）A /etc/filesystemsB /etc/environmentC Object Data Manager （ODM）D Logical Volume Control Block （LVCB）
查看答案
考题 单选题In the combustion chamber, the part whose surface is exposed to the highest temperature is the （）.A cylinder linerB cylinder coverC pistonD exhaust valve
查看答案
考题 单选题The FIRST treatment for a surface burn is to（）.A wash the burned area with a warm soap and water solutionB flood，bathe，or immerse the burned area in cold waterC cover the burned area with talcum powder and bandag it cover the burned area with talcum powder and bandage it tightlyD leave the burned area exposed to the atmosphere
查看答案
考题 单选题（）about 20 sq.m to be sand-blasted.A The rusting areaB The rusted areaC The corroded areaD The corrosive area
查看答案
考题 单选题The center of buoyancy is located at the（）.A geometric center of the waterplane areaB intersection of the vertical centerline and line of action of the buoyant forceC center of gravity of the vessel corrected for free surface effectsD geometric center of the displaced volume
查看答案
考题 单选题A VESSEL，OTHER THAN A RESCUE UNIT，DESIGNATED TO CO-ORDINATE SURFACE SEARCH AND RESCUE OPERATION WITHIN A SPECIFIED AREA is known as（）.A Salving vesselB Co-ordinator surface searchC MERSARD The vessel being salved
查看答案
考题 单选题What is the purpose of a striker plate? （）A Provides surface for applying force on machineryB Provides landing surface for the sounding bobC Absorbs machinery vibrationD Prevents valve stem over-travel
查看答案
考题 单选题The center of the underwater volume of a floating vessel is the（）.A center of buoyancyB center of flotationC uncorrected height of the center of gravity of the vesselD center of gravity of the vessel corrected for free surface effects
查看答案
考题 单选题A（）is the intersection of the surface of a sphere and a plane passing through the center of the sphere.A great circleB small circleC large circleD general circle
查看答案
考题 单选题The waterplane area is described as the intersection of the surface of the water in which a vessel floats and the（）.A baselineB vertical reference planeC hullD horizontal reference plane
查看答案
考题 单选题A solid metal cube of edge 3 feet is placed in a rectangular tank whose length, width, and height are 3, 4, and 5 feet, respectively. What is the volume, in cubic feet, of water that the tank can now hold?A 20B 27C 33D 48E 60
查看答案
热门标签
最新试卷