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Magnetism and electrical
Repulsion only occurs between the like poles of the magnet while attraction can occur between two unlike poles of magnets or between a pole and a piece of an unmagnetized magnetic material.
Repulsion only occurs between the like poles of the magnet while attraction can occur between two unlike poles of magnets or between a pole and a piece of an unmagnetized magnetic material.
See lessMeasurement II
Answer on the diagram uploaded
Answer on the diagram uploaded
See lessExplain why the sky is blue.
When the Sun's light reaches the Earth's atmosphere it is scattered, or deflected, by the tiny molecules of gas in the air. Because these molecules are much smaller than the wavelength of visible light, the amount of scattering depends on the wavelength. Shorter wavelengths (violet and blue) are scaRead more
When the Sun’s light reaches the Earth’s atmosphere it is scattered, or deflected, by the tiny molecules of gas in the air. Because these molecules are much smaller than the wavelength of visible light, the amount of scattering depends on the wavelength.
See lessShorter wavelengths (violet and blue) are scattered the most strongly, so more of the blue light is scattered towards our eyes than the other colours.
Hydraulic Machines
The major function of a hydraulic fluids (oil) is to provide energy transmission through the system which enables work and motion to be accomplished. Hydraulic fluids are also responsible for lubrication, heat transfer and contamination control.
The major function of a hydraulic fluids (oil) is to provide energy transmission through the system which enables work and motion to be accomplished. Hydraulic fluids are also responsible for lubrication, heat transfer and contamination control.
See lessThermodynamics
Wire gauze distributes heat evenly and therefore the beaker is heated uniformly. If heated at one point it expand unevenly leading it to crack.
Wire gauze distributes heat evenly and therefore the beaker is heated uniformly. If heated at one point it expand unevenly leading it to crack.
See lessFrictional force
Limiting frictional is the maximum value of static frictional force(maximum value of force just as the object starts to slide) while dynamic frictional force(kinetic frictional force) is the friction force between two surfaces that are sliding over each other.
Limiting frictional is the maximum value of static frictional force(maximum value of force just as the object starts to slide) while dynamic frictional force(kinetic frictional force) is the friction force between two surfaces that are sliding over each other.
See lessFORCE
It's a push or a pull on an object
It’s a push or a pull on an object
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