2 (a) Explain what is meant by the following terms when used in the context of forces.(i) Centre of gravity The point of a body through which the entire weight of the body appears to act. [1] (ii) Friction The force between two surfaces that opposes relative motion between them.[1...
The cistern (upper tank of water) drains through a valve in the center through the force of gravity. The valve and flushing mechanism in the middle is called the siphon. The blue, balloon-like object on the left is a plastic float that drops when the water level falls. This tilts the ...
Trying to chase down a chord to switch to, as one would clearly assume would happen, proved almost comically fruitless—every time I tried, it felt like I was trying, and I’d laugh it off and just keep going in that same B-flat; anything else felt like it undermined the gravity or ...
aRosie Huntington-Whiteley & Jason Statham out in London. Rosie HuntingtonWhiteley &贾森Statham在伦敦。[translate] aanti gravity 反重力[translate] aInvestment advisors will need to explain expected return and variance to clients. 投资顾问将需要解释期望的回归和变化对客户。[translate]...
Earth's Gravity: A Formidable Force Bring the discussion of orbits and gravity closer to home by describing how satellites orbit Earth the way Earth and its sister planets circle the sun. Because Earth is large and has mass, it has a strong gravitational field that causes objects to fall tow...
Actually, that is incorrect. Right now i'm in my desk chair, not accelerating. The force of gravity is cancelled out by the force my chair exerts on me to maintain this status quo. You're correct that it's not an inertial frame, but that is because theforceof gravity, not someaccele...
Weightis the amount offorcewith which Earth'sgravitypulls on a particular mass: the more massive something is, the more gravitational force, and the more we say it weighs. Like any other force, we should measure weight in newtons.
Their conclusion should therefore rather be that mass currents cannot indeed explain these fields and that if these field values were confirmed by observations, they would have to be generated by another physical process (non-linearity of the GR14, Quantum Gravity or something else). Moreover, ...
Explain gravity. Explain the principle of magnetic train. Explain why the light was thought to be a form of electromagnetic wave. Why do magnetic monopoles not exist? Explain. State and explain Faraday's law. Why doesn't a magnetic force ALWAYS act on a particle which moves in a magnetic ...
Title text: For a while, some physicists worked on a theory unifying the other forces with both the force of gravity and the film "Gravity," but even after Alfonso Cuarón was held in a deep underground chamber of water for 10^31 years he refused to sell his film to Disney. ...