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This may at first look like a horrible SUVAT problem, but it is actually testing your ability to calculate energy transfers. It is helpful for these questions to first draw a diagram then work out what en...

An ohmic resistor is a resistor that obeys Ohm's law V = IR (voltage = current x resistance). Therefore, if the voltage in such element is increased by n number of times, by the same number n has to incre...

Velocity and speed and vector and scalar quanities respectively. Vector quantities have both direction and magnitude (size), whilst scalars only have magnitiude. It is important to distinguish between the...

In order to see what the problem is, I will attempt to find this speed. 350keV=5.6110^-14 J E_k=1/2 * mv² =>  v=sqrt(2E_k/m) By plugging in numbers, we...

Humans have a logarithmic perception of the majority of uncountable and some countable things. A₀, which is percieved as the basic note, has a frequency of 27.50 Hz. A₁=55 Hz, and A<...