The outer radius of the steel pipe is 20 mm and the inner radius is 15 mm. If it is close to the fixed wall before loading, what is the reaction force of the wall under the load shown? A、8.0kN,8.0kN B、11.2kN,4.8kN C、3.6kN,12.4kN D、12.0kN,4.0kN 点击查看答案手机看题 你可...
Discusses the threats to the supremacy of the North Atlantic Treaty Organization within Europe. Security implications inherent in the European Union's (EU) push for a common foreign policy; Potential division of the EU into a multispeed institution; Aspects of the security policy of the EU. ...
Is the following statement true or false: "The alternative theory to gravity is that there is a repulsion wave/force from the sky." Explain. Why don't we have a way to model gravity? What was the insight of Newton during the formulation of gravity?
The direction of this force is always from the center mass of the object to the point of rotation. To visualize it, one can think of it as the tension in the string when spinning a mass at the end of the string ...
The force of gravity acting on an object is also that object's weight. When you step on a scale, the scale reads how much gravity is acting on your body. The formula to determine weight is [source: Kurtus]: weight = m x g where m is an object's mass, and g is the acceleration...
Mass is defined as the amount of matter in an object while weight is defined as the force exerted by an object. SI unit of mass is kilograms while SI unit of weight is Newtons. Object weighing 1 kg mass will have 9.8 N weight.
3.Who is in charge of the project? A.Dan. B.Gary. C.Mary. 4.What does the man say about the restaurant? A.The waiters were noisy. B.The food was not his thing. C.The atmosphere was friendly. 5.What language does Mr.Black speak best?
Centripetal and centrifugal forces are two terms used to describe the physics of circular motion — but only one of them is real. The centripetal force keeps an object moving in a circle and is always pointed toward the center of that circle. For instance, the gravitational force of the sun...
Generation Y and Grunt: The main idea here is that there is a succession of different generations or cohorts of adults who come into the workforce in North America which are given different informal names to characterize them. First, “Baby boomers” were born in the great increase (the boom...
“Let us define plot. We have defined a story as a narrative of events arranged in their time-sequence. A plot is also a narrative of events, the emphasis falling on causality. ‘The king died and then the queen died,’ is a story. ‘The king died, and then the queen died of grie...