A 2.30-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.90 m down the incline in 1.80 s.(a) Find the magnitude of the acceleration of the block._________ m/s2(b) Find the coefficient of kinetic friction between bloc

Block A has a mass of 3 kg and Block B has a mass of 5 kg.Just before colliding,Block A has a speed of 4 m/s and Block B is at rest(0m/s).After the collision,Block B has a speed of 3m/s in the same direction that Block A was initially.What is the spe block a vote A 2.30-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.90 m down the incline in 1.80 s.(a) Find the magnitude of the acceleration of the block._________ m/s2(b) Find the coefficient of kinetic friction between bloc block block a tall block的意思 a{display:block;}中display:block;是什么意思,有什么作用 wooden block是什么意思原句是：put ink on a wooden block 第二道!紧急A block of mass m = 2.0 kg is held in equilibrium on an incline of angle θ = 60° by the horizontal force FDetermine the normal force exerted by the incline on the block a 5-star friend be a star 大学物理题（）,A 15-g bullet is shot vertically into an 5-kg block.The block lifts upward 3.0 mm (see the figure).The bullet penetrates the block and comes to rest in it in a time interval of 0.0010 s.Assume the force on the bullet is constant the roof of a block of A chip off the old block意思 12th Floor,Block A,Lincoln Road. a city block away 怎么翻译 一道英文物理题目(英文其实很简单).求高手解答~~~~~~~~~~~~~A 10-kg block is connected to a 40-kg block.The surface on that the blocks slide is frictionless. A force of 50N pulls the blocks to the right.a) what is the magnitude of the a star with a big