cylinder

This page lists questions and answers that were posted by visitors named cylinder.

Questions

The following questions were asked by visitors named cylinder.

an ostrich can run a maximum speed of 70km per hour. You have to convert the 70km to 70000m. you have to convert the per hour part too and 1hr =60 min. Somehow the time becomes 3600, could someone please tell me how?

7 years ago

What does collision is INELASTIC mean?

7 years ago

Could a physics expert please help out with my other questions please?

7 years ago

The table below shows how the braking distance x for a car depends on its initial speed u u / ms-1 5.0 10 20 4 x / m 2.0 8.0 32 128 the reaction time of a driver is 0.60s. Calculate the sopping distance of the car when u= 30ms-1. The mark scheme says: Thi...

7 years ago

Describe how the vertical component of the velocity of the water varies form point X to point Z? Image with a flat horizontal line with a curve on top (beg curve: X, top middle curve: Y, End bottom curve: Z) Mark scheme Answer: decreases from x to y DON’T...

7 years ago

do these cancel out and why/why not? S^2 = S^2 S^-2 = S^2

7 years ago

There is a right angle triangle: -.- -...- -......- -.........- T (wire) -............- -...............- ------------------ 30 degrees ....--.....--.....rod ....--.....--..... ....--.....--..... ....---------..... ....-.......-..... ....-.......-..... .....

7 years ago

Q11.The table below shows how the braking distance x for a car depends on its initial speed u. | u / ms-1 | 5 | 10 | 20 | 40 | | X / M | 2 | 8 | 32 | 128 | The relationship between x and u is: doubling speed increases distance by a factor of 4. i)The reac...

7 years ago

To calculate the young modulus uncertainty do you add together the percentage uncertainty of strain and stress and if not then what do u do. Please dont send websites just tell and help me out.

7 years ago

change in mass___total charge_____no of elect for each of______delivered by_______rons pass objects_________circuit(eachtest)_(thrcathod) _____________________________________________0.14____________144__________9 x 10^20___ 0.57_____________132__________...

7 years ago

Please help and do it step by step all parts of questions and use: T = time(s) I=current (amps) Q=net charge on object (Coulombs) N=no electrons (and write if added or removed from object and how) E=elementary charge Calculate the number of free electrons...

7 years ago

Carbon tetrachloride, CCl4 is used as a solvent and a coolant. Its boiling point I s-22.9 degrees. By considering the intermolecular forces involved discuss whether you expect the boiling point of CHCL3 to be greater or lower than tis value. [6] Please he...

7 years ago

Iodide and diamond crystals both contain covalent bonds and yet the physical properties of their crystals are very different. Their melting points are 387K and 3827K respectively. State this type of structure present in each case and explain why the melti...

7 years ago

Silver plating: A student attempts the process of silver plating to determine the mass of a silver atom. a series of objects are measured, then electroplated for a measure period of time, while maintaining a steady current through a solution of silver nit...

7 years ago

the figure below shows the graph of force,F (y axis)acting on a trolley of 0.4kg against time,t (x axis) 20--------- ........._-- ........._...-- ........._....--- ........._......--- ........._.......----- 0........5............9 The velocity of the trol...

7 years ago

Answers

The following answers were posted by visitors named cylinder.

So would collision is ELASTIC mean: the two objects don't stick together and move with different velocities? ?????

7 years ago

I know 1 is in equilibrium. 2 is not. 3 I'm not too sure about.

7 years ago

I'm am very stuck on this one so I dont have working out and need all steps.

7 years ago

I think magnitude means how much of something or how long the sides are or the angle.

7 years ago

Here I've already written what I thought of the question in caps lock and the thing I dont know at the bottom.

7 years ago

I think this is because of no movement...??

7 years ago

I wrote what I do know and the caps lock is what I dont know, and that is the working out for braking distance shown above is confusing to me.

7 years ago

Y - - - - - - - - - - X Z

7 years ago

Y -- - -- --- - - ----- -- - -------------- - - ----------------- - X Z

7 years ago

...........---y---- .........----------- ......------------------- ...-------------------------- . x----------------------------z

7 years ago

It looks kinda like the last image i posted but its a curve

7 years ago

and equal on both side

7 years ago

I am in as and we dont use those symbols so im confused

7 years ago

do the same positive power 2 on both sides cancel out or the opposite - and + powers

7 years ago

...........---y---- .........----------- ......------------------- ...-------------------------- . x----------------------------z is the picture

7 years ago

What i think s dunno u 30 v dunno a 9.81 t dunno someone used the equation v=u+at and s=ut+1/2at^2 if t is zero then i think v is 30 after putting the numbers in. then.. oim confused using suvat and where the numbers came from please help

7 years ago

Please help i hvae been confused on this for ages

7 years ago

by the wa for the table 5 is above 2 10 is above 8 andso on the space i leftr arent posted/shown

7 years ago

the cars acceleration is zero

7 years ago

not 0

7 years ago

I reposted like you asked and i included the full question and my working out and what i need help with so pplease help

7 years ago

Thank you, finally someone who answered, I have been waiting ages for this questions answer. So you saying that your 100 percent sure that is the answer and the mark scheme which the examiner made is wrong?? This is what the mark scheme said for braking d...

7 years ago

Please just tell me if I AM right or wrong because the website wont do that. I think I: -add percentage uncertainty of stress and strain together (i think this is the total percentage uncertainty so the young modlus unceratinty??) -then i use this percent...

7 years ago

Please tell me what you think of the mark scheme answer what they did and if now looking at this mark schee answer you stillthink that it is wrong and your answer is right? just as i want to make sure my notes are right.

7 years ago

Damon said: v = Vi + a t where t is AFTER 0.6 s v = 30 + a t so x = Xi + Vi t + (1/2) a t^2 a will be negative of course Xi is 18 when t = 0 x = 18 + 30 t + (1/2) a t^2 -i dont know what xi means -if this wiill result in yuor answer or the mark scheme ans...

7 years ago

i also dont get how to work out damons last line if his is right

7 years ago

plz answer

7 years ago

How old the object containing the element is.

7 years ago

θ = s/r = (6 m)/(5/2 m) = 12/5 radians = 2.4 radians r = s/θ = (60 ft)/(3π/2) = 40/π ft ≅ 12.732 ft

7 years ago

dGorxn = (n*dGo products) - (n*dGo reactants

7 years ago

Given, Diameter = 21m, cost of the rope = Rs 4 per meter, length of the rope required to fence the garden two round=?, Cost of the rope = ? The length of rope required = 2 × circumference. Circumference = 2 π r = π D = (22/7) × 21 = 66 m Therefore, length...

7 years ago

Choose from the options below:( to get you thinking) A 202 N B 222 N C 242 N D 262 N

7 years ago

54(9.8*sin15+1.2) will show you the option it is

7 years ago

and one of the options is right so do that working out to find out which one

7 years ago

I dont know it doesnt say but those are the 2 values for a single silver atom if that helps you figure out the units.

7 years ago

is there a way to work this out?

7 years ago

i cant find the numbers for the equation yo gave me "NUMBER electrons per lenth=electron dinsity)*area"

7 years ago

The "10-3" bit especially confuses me as i dont know where those number came from and wat it is for/ wat equation

7 years ago

i figured out that f x change in t =change in p is the equations used and nowi understand that bit so it became: change in momentum= 20 x 5=100 change in momentum= 1/2(20x4)=40 i just dont get the 10-3 bit

7 years ago

in which wire will the electrons move faster and why?

7 years ago

1) Tap water is water supplied to a tap. Its uses include drinking, washing, cooking, and the flushing of toilets. 2) Today, most plumbing supply pipe is made out of steel, copper, and plastic; most waste (also known as "soil") out of steel, copper, plast...

7 years ago

nothing comes up useful when i write:why is the mass of a silver atom higher than expected and im not sure what to write please help me more

7 years ago

Lead pipes. For many centuries, water pipes were made of lead, because of its ease of processing and durability. ... Most of the lead pipes that exist today are being removed and replaced with the more common material, copper or some type of plastic.

7 years ago

I dont know what to link or write to answer the question, i did your research task but am still confused

7 years ago

Thank you so much both of you really helpful!! :)

7 years ago

So is all this what i should right? i dunt know which bit is relevant as so much stuff comes up and i dont know what to link and what is required of me to write, now that i have given it a go could you please help

7 years ago

You said: "tap water" but more likely, what are the units for the accepted and the measured? I said: I dont know it doesnt say but those are the 2 values for a single silver atom if that helps you figure out the units. you said: No, I know the units, the...

7 years ago

no its 10-7 as in it equals to 3 AND you minus it, its not a power. Please post hrelp with this in mind

7 years ago