2018年3月17日 · 171.5 J The amount of work required to complete an action can be represented by the expression F*d, where F represents the force used and d represents the distance over …

2018年6月26日 · 1.75 kg To find the mass of NaCl, we'll use the formula: "%(m/m)" = "mass of solute"/"mass of solution"*100% NaCl in this case is the solute Given from the question: mass …

2015年4月11日 · To calculate the de Broglie wavelength for a particle, or for a tennis ball for that matter, just use the equation p = h/(lamda), where p - the momentum of the atom; h - Planck's …

2018年8月14日 · The crate will move with constant speed when applied force is equals to Kinetic frictional force. And here it is mu_k ×N=mu_k ×mg=0.3×35×9.8=102.9N In abscence of …

2016年9月2日 · 9453 views around the world You can reuse this answer ...

2017年11月29日 · The child's centripetal acceleration is 2.1125m \\/s^2. Newton's second law relates force F, mass m and acceleration a. F=ma The centripetal force required to keep an …

2016年1月4日 · I found 571.7J With respect to the ground it will be equal to: U=mgh Where: m=35kg is the mass; g=9.8m/s^2 is the acceleration of gravity; h=5/3m is the height with …

2018年1月10日 · See a solution process below: The formula for finding an average is: A = "Sum of All Values"/"Total Number of Values" The total weight of the boys in the class is: 5 xx 40"kg" …

A 0.2 kg piece of unknown metal is heated to 87 °C and then dropped into a 0.28 kg sample of water at 22°C. If the final temperature of the mixture is 24°C, what is the specific heat of the …

2016年6月19日 · The bowling ball has a kinetic energy of 9 J. To answer this question, we have to make use of the formula below: Additionally, the kinetic energy will have units of …