A particle,rest mass m,moves with a certain speed.After totally inelastic collision with an identical particle at rest,a new particle,with rest mass M,is produced.The kinetic energy of original particle is 一个粒子的静质量是m,以一定的速

A particle,rest mass m,moves with a certain speed.After totally inelastic collision with an identical particle at rest,a new particle,with rest mass M,is produced.The kinetic energy of original particle is 一个粒子的静质量是m,以一定的速 A level 高中力学运动学计算.这是Alevel数学.（带翻译）A particle of mass 0.1kg is at rest at a point A on a rough plane inclined at 15 degrees to the horizontal.The particle is given an initial velocity of 6m/s and starts to move up a A level A particle of mass 2kg is acted upon by a horizontal force of magnitude 10N for 8 seconds,in which time time it moves from rest until it is travelling with speed v米每秒.Show that v=40.The particle continues to move with this speed for the 一道A-Level物理题A and B are points on the same line of greatest slope of a rough plane inclined at 30° to the horizontal.A is higher up the plane than B and the distance AB is 2.25m.A particle P,of mass m kg,is released from rest at A and reac 翻译：A neutron is a nuclear particle with an atomic mass of 2.0 and a neutral electrical charge. 一道A-Level物理题(越快越好)A and B are points on the same line of greatest slope of a rough plane inclined at 30° to the horizontal.A is higher up the plane than B and the distance AB is 2.25m.A particle P,of mass m kg,is released from rest a mass In Fig.13-41,a particle of mass m1 = 0.24 kg is a distance d = 38 cm from one end of a uniform rod with length L = 6.7 m and mass M = 3.3 kg.What is the magnitude of the gravitational force on the particle from the rod? 问一道量子力学的题Consider a particle of mass in the state |n> of a box of length L.Find the force F=-dE/dL（偏微分,那个符号打不出来用d代替了）encountered when the walls are slowly pushed in ,assuming the particle remains in 力学英语求解释.Newton's second law of motion states that the force needed to accelerate a particle is equal to the product of the mass of the particle and the acceleration produced.The unit of force is the newton(N).It is defined as the force a mass blind 物理选择题~!求大家帮忙解决~!2.The coordinate of a particle in meters is given by x(t)=16t-3.0t^3, where the time t is in seconds. The particle is momentarily at rest at t=a)0.75sb)1.3sc)5.3sd)7.3sb)9.3s是问停留的时间?大家帮忙 rest a mass Consider a free particle of mass m in one dimension.Calculate it's propagator in momentum space:.This propagator is the probability amplitude for a system originally prepared to be in state | Pa> at t=ta to be found in state | Pb> at a later time t=t the mass of 与 a mass of 有啥区别? 再问个英语冠词问题The shoemaker is a person who makes or mends shoes.An electron is a particle of very small mass.Scientists use mice to test new medicines.为什么第一个要用定冠词,第二个用不定冠词,第三个零冠词.三者 mass的用法the mass of 和 a mass of 有什么区别？