What is frictional force? A. The force that makes objects fly. B. The force that helps objects move easily. C. The force that opposes the motion of an object when it slides or rolls over a surface. D. The force that makes objects disappear. ...
What type of frictional force is the weakest? How do you describe motion on the velocity-time graph? A particle of mass m is subject to a force F(v) = bv^2. The initial position is zero, and the initial speed is v0. Find x(t). Since this problem is basically an exercise in in...
What is pseudo force? Find the acceleration produced by a force of 1650 N against a friction force of 500 N while pushing on a mass of 6.50 kg. Why is there movement when the frictional force is equal to the applied force? Given: Mass 1 = 0.106 kg Mass 2 = 0.121 kg Acceleration =...
Frictional unemployment represents the time period that workers are looking for a job either as first-time seekers or in-between jobs, and it is an ongoing type of unemployment as it includes job transitions and workers entering and exiting the labor force. This type of unemployment exists ...
A satellite is orbiting the Earth. What force keeps it in orbit? A. Frictional force B. Magnetic force C. Gravitational force D. Nuclear force 相关知识点: 试题来源: 解析 C。解析:卫星绕地球运行是因为地球对卫星的万有引力提供了向心力,使其能够在轨道上运行。A选项,太空中卫星几乎不受摩擦力;...
What Influences Frictional Unemployment? This type of unemployment is influenced by a number of different factors. The time of year can have a huge impact on the number of people seeking work for the first time. After graduation there will be a whole new cohort of young adults looking for th...
where G is the gravitational constant. Step 2: Determine the New DistanceIf the two bodies are brought closer by half of their initial separation, the new distance r′ becomes:r′=r2 Step 3: Calculate the New Gravitational ForceNow we can calculate the new gravitational force F′ using the...
2. Frictional force: The frictional force between the tires and the road surface provides the traction necessary for the car to move forward. 3. Air resistance: As the car moves forward, it encounters air resistance, which opposes the motion of the car and affects its speed...
(i) work done by the applied force over the upward journey? (ii) work the by gravitational force over the round trip? (iii)work the by the frictional force over the round trip? Which of the above forces (except applied force )is/are conservative forces?
Force is an influence that can change the motion of an object; load is the weight carried or supported by something.