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During a crash the velocity of the car is reduced to zero. The deceleration of the car exerts a force on the driver causing injury. Without a crumple zone the change in velocity is instantaneous therefore...
Region which a force acts on a charged particle and the force is same at all points.
Electricity is the flow of electrons through a material. But for electrons to pass through a material they have to give up some energy, this is called a material's resistance. The energy that is lost from...
The equation dQ = mcdT tells us how the temperature of an object changes when heat energy dQ is added. In this case the specific heat capacity c is the same for the contents of both beakers since...
Begin by calculating the current force and moment of the bar.Force: 8+4-7=5 (or vice versa)Moment: 72= 14 Nm anticlockwise 81= 8 Nm clockwise 4*1= 4 Nm anticlockwiseSum calculated moments: 14+4-8...
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