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Q: When a tuning fork of frequency 360 Hz is held about a tube filled with water the resonances are found when the water level is at 25cm and 75cm. What is the speed of sound in the air? Thanks

An object is placed on a rough floor and given an initial velocity of 15 m/s. It then slides 25 m before coming to rest. The coefficient of kinetic friction between the object and the floor is..?

Hey all, I got this question today: 16. Two objects are thrown off a cliff. One is thrown directly up, the other directly down. The ball thrown upward hits the ground a. at the same speed as the one thrown downward b. faster than the one thrown downward c. slower than the one thrown...

Hey, My UAI this year is 81, meaning I will get into MedRadSc RT. I wanted to know more information on if I want to transfer to a higher one providing I have the marks to do so. From what I have heard the first semester, the courses are all the same so would I be able to transfer then or would...

We were given the following dot point to do over the weekend. Students perform an investigation to model the behaviour of semiconductors, including the creation of a hole or positive charge on the atom that has lost the electron and the movement of electrons and holes in opposite directions...

the cost of running a car at an average speed of v km/h is given by c= 150 + (v^2 / 80) cents/km. find the average speed, to the nearest km/h, at which the cost of a 500 km trip is a minimum i derived that, so that i had dc/dv = v/160 , which then i made = 0 v=0...

How many moles of H+ in 25.0mL of 0.1M HCl? The book is saying n=2.5x103 moles of HCl and also of H+ But I keep getting n=2.5x10-3 My working: C=0.1 V=0.025 n=CV n=0.1*0.025=2.5x10-3

Can someone please do this question, with working. I keep getting the wrong answer.. Thanks :) The burning of sulfur can be described by the following equation: S(s) + O2 (g) --> SO2 (g) What volume of sulfur dioxide will be released at 25oC and 101.3 kPa when 8.00 g of sulfur is burnt?

Does anyone have any half-yearly exams from there schools on chemistry (or physics) that you could possibly scan for me and email them to draped.and.displayed@gmail.com. Thanks And yes, I have gotten the ones of the resources.

Draw a sketch graph for the function showings its important features. y= (x+3)/(x+1) Thanks.

Which is better at avoiding data collision, CSMA/CD or Token Ring. Explain why.

Can someone help please :) A particle is moving in SHM with displacement, in metres, over time t seconds, given by x = 2 sin 6 t. Find the equation of the velocity of the paticle in terms of t. ........... x= 2sin6t x'=12cos6t x"=-72sin6t=-36x ...........

Q1 curve y=x^3 -2x^2 -4x +8 find the points where the curve meets the x-axis Q2 gradient fucntion of the curve is given by 4x^3 -2x +3. the curve passes through (-1,2) where does the curve cut the y-axis Q3 the point (2,-8) is a turning point of the curve y=f(x) f"(x) =12x +18 a) find...

∫13 to 9 dx/(x-7) How do I intergrate that?

A long jumper left the ground at an angle of 15degrees and jumped a distance of 7.0m. Considering this result, caluculate the velocity of long jumper when leaving the ground. How would I go about answering that?

When analysing a song, what sort of music techniques are there?

Hey, is anyone available that would be able to acctually help me rather than just one question at a time? It would be a HUGE help.. i have a few questions which would be easier answered by asking sorta one Q at at a time... msn: draped_and_displayed@hotmail.com thanks

There's a heap of questions... fairly similar. I'll give you the first A lifeboat is dropped from a plane moving at 140m/s from a height of 110.5 m -initial velocity of the projectile -its initial horixontal veloctiy -its initial vertical velocity -its range -its final horizontal...

..it seem's a few people are having trouble with this! How do I answer this: A body is projected vertically upwards with an intial velocity of 50m.s^-1 a) velocity after 2s. b) max height it reaches c) velocity with which it returns to Earth I though you would answer velocity as...

Can someone tell me if I'm so far going right - and how to finish it. n ∑ 5r = 5/2 n (n+1) for all n≥1. r=1 Let n=1 LHS= 5(1) = 5 RHS= 5/2 (1) ((1)+1) = 5 Assume the formula true for n=k. 5+10+15+...+5k=5/2 k (k+1) Prove the formula true for n=k+1 ..and thats where...