a car of mass 1500kg is moving up a straigt road,which is inclined at an angle *to the hrizontal,where sin*=1/14,the resistance to the motion of the car from non-gravitional forces is constant and is modelled as a single constant force magnitude 650N

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a car of mass 1500kg is moving up a straigt road,which is inclined at an angle *to the hrizontal,where sin*=1/14,the resistance to the motion of the car from non-gravitional forces is constant and is modelled as a single constant force magnitude 650N the mass of 与 a mass of 有啥区别? mass的用法the mass of 和 a mass of 有什么区别? 物体转弯是速度为什么减小 最好用英文 1.A car of mass 750kg is being driven by Fred at a constant speed of 20m/s.In order to maintain this constant speed,it is exerting a thrust force of 15kN.Fred approaches a gentle bend in the road.F a mass of =masses of吗? 1.In a group of six people,two have a mass of 60kg while three have a mass one and half times that.what is the mass of the sixth person if the average group mass is 70kg?2.There are x dimes and y nickels in bag A and x nickels and y dimes in bag B.Th a mass of 的近义词和词性 a mass of是什么意思及用法 The mass of a grade A steel cylinder manufactured in a factory follows a normal distribution with mThe mass of a grade A steel cylinder manufactured in a factory follows a normal distribution with mean 2.2 kg and standard deviation 250 g.The mass of a mass 100分求一道物理题 If the mass of a hydrogen atom is 1.67*10^-27kg and the mass of an electron is 9.1*10^-31kg,how many electrons would be required to have a mass equivalent to one hydrogen atom? 具体是:A space vehicle made up of two parts is travelling at 230 m/sthe mass of partA is 450kg,the mass of partB is 1200 kg.an explosion causes the 450 kg part to separate and travel with a final velocity of 280 m/sWhat was the magnitude of the 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 The elements of a compound occur in a fixed mass ratio.请问fixed mass ratio 英文物理题,关于地心引力的A planet with a mass of 7.99·1021 kg is in a circular orbit around a star with a mass of 4.83·1030 kg.The planet has an orbital radius of 1.99·1010 m.a) What is the linear orbital velocity of the planet?b) What a mass of 怎么用还有masses of A paintball with a mass of 0.15kg is fired from a paintball gun that has a mass of 5.5 kg.The paintball leaves the gun with a velocity of 45 m/s [N] having accelerated for 0.10 s.Calculate the acceleration and the final velocity of the paintball gun. a solid cylindrical flywheel is 1.2m in diameter and has a mass of 910kg.If the axle is 150mm i...a solid cylindrical flywheel is 1.2m in diameter and has a mass of 910kg.If the axle is 150mm in diameter and the coefficient of journal friction is 0.1