Homework Statement
Hi
Can anyone please help with this question?
A light elastic string AB has natural length l and modulus of elasticity 2mg. Another light elastic string CD has natural length l and modulus of elasticity 4mg. The strings are joined at their ends B and C and the end A...
Homework Statement
Can anyone explain the above concept in a concise manner? I am proposing that banking aids motion at maximum speed on a curved surface. I am not totally sure how to include the role of side friction and centripetal force. Any further suggestions would be appreciated...
Homework Statement
Hi Guys
I obtained a slighty different answer. Can anyone kindly verify where I am going wrong? The question is stated thus:
A simple pendulum is of length 0.5m and the bob has mass 0.25kg. Find the greatest value for the tension in the string when the pendulum is set...
Homework Statement
Hi Can anyone help with this question? It will be highly appreciated. An object of mass 6kg is whirled round in a vertical circle of radius 2m with the speed of 8m/s. If the string breaks when the tension in it exceeds 360N, calculate the maximum speed of rotation and...
Homework Statement
Hi
I am struggling with the diagram of this question. Can anyone help? I would have loaded my diagram but unsure how to do it. This is the question:
Starting with the following statement (A+B).(A+C), show how this can be implemented using NAND gates using DeMorgans law...
Thanks for your help. I mislead you about the diagram. The inductor, capacitor and resistor are all in parallel with the supply voltage at the bottom of the circuit. Does this clarify matters? I apologize for not presenting a diagram.
So, my final answer is in ohms and negative. Aside from that, is my working okay? I feel its fine but its the determinant for a distinction or a merit.
Thanks.
Homework Statement
Hi
Can a kind person please check my solution? This is the question: Demonstrate the total current in an RLC parallel circuit using the following circuit. I cant draw it but the inductive reactance is 20ohms, capacitive reactance is 5ohms and resistor of 10ohms. All are in...
Homework Statement
Now demonstrate how to calculate resonant frequency. Calculate the capacitive reactance for a 300uF capacitor in series with a 800mH inductor.
Homework Equations
f = 1/2pi(LC)^1/2
Xc = -1/2pifC
Hi
I urgently need this solution checked out for my BTech...
Homework Statement
Hi All
Just need some clarification on this problem:
In splitting logs with a hammer and wedge, is a heavy hammer more effective than a lighter hammer? Why?
Homework Equations
F = ma
M(v-u)=Ft
The Attempt at a Solution
I would state that the smaller hammer...
Homework Statement
Hi everyone, I am not sure how to sketch this:
y^2 = X^3
I have a feeling it will form a parabola.
If I find the square root of both sides I get:
y = X^3/2
Differentiating gives me
dy/dx = 1.5X^1/2. Kind of stuck from here. Please help.
Homework...
Homework Statement
Hi
I need some clarification on this question
A light elastic string of natural length 50 cm and modulus 20 N has one end fastened to O on a smooth horizontal table. The other end has a particle of mass 0.4 kg attached to it and the particle is released from rest at a...
Homework Statement
Hi
I need a clarification before my S2 exam on Thursday. How do I find a value of P(Z<0.7925)? This is bearing mind that all the table values are to 2 decimal places.
Thanks.
Homework Equations
Normal Distribution Tables
The Attempt at a Solution...
Homework Statement
Hi
I am trying to solve the d, e and f parts of this problem
The discrete random variable X has probability function
where k is a positive constant.
P(X = x) ={k(2 – x), x = 0, 1, 2,
k(x – 2), x = 3,
0, otherwise,
(a) Show that k = 0.25...
Thanks. But very strong critique though!o:) Please make your tone softer next time. I work full time and study independently. So, its all in my head and my reasoning. Me, myself and I.
But I appreciate it. As you can guess, I am typing from work now. Will give you a feedback after work.
Homework Statement
Hi
I have been stumped by this question for the past few days. Worrying since I will be sitting STEP in June! Never mind. It goes like this:
A particle is projected vertically upwards with a speed of 30m/s from a point A. The point B is h metres above A. The particle moves...
Homework Statement
Hi
I have been stumped by this question for the past few days. Worrying since I will be sitting STEP in June! Never mind. It goes like this:
A particle is projected vertically upwards with a speed of 30m/s from a point A. The point B is h metres above A. The particle...