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Explain the concept of bandwidth with regard to a real op-amp and how this differs from the ideal op-amp.

Ideal op-amps are considered to have infinite open loop gain at any frequency, meaning that in a feedback circuit the output voltage will always be as large as it needs to be to bring the potential differenc...
AL
2770 Views

A launcher 1m tall fires tennis balls with a velocity of 15m/s at an angle of 20 degrees from horizontal. Neglecting air resistance, calculate the maximum height, time of flight and distance traveled by the ball.

While conceptually simple, drawing on understanding of kinematic equations and vectors, these projectile problems require attention to the details of the problem such as accounting for the launch height and ...
AL
Answered by Andrei L. • Physics tutor
3771 Views

Would Human Rights survive in the UK if the Human Rights Act 1998 were to be repealed by Parliament?

This question requires one to consider how far civil liberties (the common law or ‘residual’ rights of private citizens) protect human rights in the UK and whether the HRA is necessary in upholding these rig...
JM
Answered by Jacob M. • Law tutor
1868 Views

Let C : x^2-4x+2k be a parabola, with vertex m. By taking derivatives or otherwise discuss, as k varies, the coordinates of m and, accordingly, the number of solutions of the equation x^2-4x+2k=0. Illustrate your work with graphs

Write y=x 2 -4x+2k. And m:= (x m , y m ) for the coordinates of our vertex. We deduce that x m is exactly the value of x for which y'=2x-4=0, because m is a minimum point of y. By solving y'=0, we get x=2=x ...
MV
3594 Views

When should I use the subjunctive?

The subjunctive in French is a special verb form (called a mood) which is used to express doubt or uncertainty, for example following phrases such as 'je ne pense pas que', 'je doute que', 'je ne crois pas q...
CM
2025 Views