工人利用如图所示的�轮组在20s内将200n的重物匀速拉到9m 高的楼上所用的拉力是80n.求1有用功是多�2�轮组的机械效率 Template




You need a modern browser try chrome, to view this.

Background image: Hide Show

View Larger Image Image Credit: 1010jiajiao.com






Try and sketch some of thesePastrami, Spiral, Seamstress, Wagon wheel, Prospector, Trombone, Princess, Rug, Skydiver, Pruners, view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

anonymous
anonymous
sketch #5350


Fabio Sala
sketch #2672


anonymous
anonymous
sketch #5048


anonymous
anonymous
sketch #3753


Tom Kelly
sketch #521 A hungry caterpillar


anonymous
anonymous
sketch #3595


anonymous
anonymous
sketch #303


anonymous
anonymous
sketch #4555 Mario by Alexander Volodimirovich Danilchenko


anonymous
anonymous
sketch #5231


anonymous
anonymous
sketch #3208 ELETR by Raimundo Santos


Helyryn
sketch #308


Gaurav Patel
sketch #2691


anonymous
anonymous
sketch #4905 The Little Prince by Gaurav Patel


anonymous
anonymous
sketch #5131 Miley Cyrus by Vannak Von


anonymous
anonymous
sketch #4895 Cat by Gaurav Patel


anonymous
anonymous
sketch #3513


anonymous
anonymous
sketch #2926 Power Puff Girls by Sylvie Rieux


anonymous
anonymous
sketch #2477 hhhh


anonymous
anonymous
sketch #3626 Skream by Wellen Lima


anonymous
anonymous
sketch #3562 Angry by Leon Soria Ricardo


anonymous
anonymous
sketch #2195


anonymous
anonymous
sketch #5073 Broken Heart by Islam Mourad


anonymous
anonymous
sketch #3280 Adventure Time by Alina Danielle


anonymous
anonymous
sketch #3261


anonymous
anonymous
sketch #3388 Fight Club by Alvaro Velasquez


anonymous
anonymous
sketch #1500


anonymous
anonymous
sketch #5135 &#;Hypno Colorfull&#; by Lars Tunebo

tomski工人利用如图所示的�轮组在20s内将200n的重物匀速拉到9m 高的楼上所用的拉力是80n.求1有用功是多�2�轮组的机械效率 coloring