The mass of an object is measured in ___. A. newtons B. joules C. kilograms D. watts 相关知识点: 试题来源: 解析 C。解析:质量的单位是千克(kilograms)。选项 A“newtons”是力的单位;选项 B“joules”是能量单位;选项 D“watts”是功率单位。反馈...
Calculate the weight (in newtons) of an astronaut (mass of 100 kg) on a planet where the acceleration due to gravity is 9.54 meters per second squared. Round your answer to two decimal places. Calculate the weight (in newtons) of an astronaut (mass of 100 kg) on a ...
If a spring gains 0.400 joules of potential energy as it is stretched 0.0375 meters from its equilibrium, what is the spring's force constant?. When a 1.53-kilogram mass is placed on a spring with a spring constant of 30.0 Newtons...
If its acceleration is observed to be 6 \ m/s, what is the resistance in newtons offered by the air? What is the acceleration of two falling skydivers (mass = 132 kg including parachute) when upward force of air resistance id equal to one fourth of their weight? ...
So, here’s a guy, who literally is moving an object. He’s applying a force of 700 Newtons, which is force and he’s moving it two meters. So, you would say 700 times 2, you get 1400 joules, okay? Work is measured in energy. So, how much energy was expended? So, if you ...
Object A has gravitational potential energy of 24 joules when it rests on a shelf 5 m above the ground. Object B has a mass that is three times the mass of Object A. What would be the gravitational po A 215-kg object...
This is read as, force equals mass times acceleration. In standard international units (SI units) mass is given in kilograms (kg), acceleration is given in meters per second per second (m/s2), and force is given in Newtons (N). Abbreviated as N, a Newton is defined as the force ...
The Greek symbol ∆, or delta, means "change" or "difference" by convention in physics and math. In addition, you can verify that pressure times volume gives units of work; pressure is measured in newtons/m2, while volume may be expressed in m3. ...
The metric units for force are newtons, those for distance are meters and those for work are newton-meters, or joules. Energy is the capacity for doing work, and it is also expressed in joules. Kinetic and Potential Energy An object in motion possesses its energy of movement, which is equ...
1Pa=1Nm2=1Jm3 where N is newtons, m is meters, and J is joules. The metric system also makes it easy to convert within its own units. This can be useful to scale pascals and SI units to these greater more common measurements while still retaining standard units: A hectopascal=1hPA=1...