Ask a New Question
Search
Questions and answers by
cylinder
Questions (42)
Silver plating:
A student attempts the process of silver plating to determine the mass of a silver atom. a series of objects are
2 answers
768 views
the figure below shows the graph of force,F (y axis)acting on a trolley of 0.4kg against time,t (x axis)
20--------- ........._--
2 answers
538 views
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)
5 answers
946 views
the figure below shows the graph of force,F (y axis)acting on a trolley of 0.4kg against time,t (x axis)
20--------- ........._--
2 answers
539 views
Silver plating:
A student attempts the process of silver plating to determine the mass of a silver atom. a series of objects are
8 answers
646 views
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)
2 answers
584 views
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)
3 answers
500 views
Iodide and diamond crystals both contain covalent bonds and yet the physical properties of their crystals are very different.
1 answer
561 views
Carbon tetrachloride, CCl4 is used as a solvent and a coolant. Its boiling point I s-22.9 degrees. By considering the
1 answer
704 views
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)
1 answer
605 views
The current carriers in a piece of semiconducting material have a charge of 1.6 x 10^-19C. Calculate the number of charge
2 answers
617 views
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)
1 answer
541 views
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)
1 answer
533 views
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)
0 answers
530 views
The current carriers in a piece of semiconducting material have a charge of 1.6 x 10^-19C. Calculate the number of charge
0 answers
642 views
change in mass___total charge_____no of elect
for each of______delivered by_______rons pass
1 answer
438 views
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 | |
2 answers
720 views
To calculate the young modulus uncertainty do you add together the percentage uncertainty of strain and stress and if not then
3 answers
1,697 views
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 | |
6 answers
645 views
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 | |
1 answer
707 views
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
6 answers
934 views
There is a right angle triangle:
-.- -...- -......- -.........- T (wire) -............- -...............- ------------------ 30
2 answers
449 views
do these cancel out and why/why not?
S^2 = S^2 S^-2 = S^2
2 answers
377 views
A 2.0 rigid rod with negligible weight is subject to forces in three different ways as shown in diagrams 1-3 below.
diagrams: 1-
2 answers
1,071 views
(As physics working out please) (SI UNITS)
Which physical quantity has the same base units as energy? SHOW ALL WORKING OUT!
1 answer
546 views
What does decreased in MAGNITUDE mean?
2 answers
359 views
Describe how the vertical component of the velocity of the water varies form point X to point Z?
Image with a flat horizontal
8 answers
803 views
How is kinetic energy lost on impact to the ground?
2 answers
480 views
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
3 answers
1,244 views
The drag force acting on a car travelling at a speed v is given by the equation F=kAv^2
Where A is the area of the front of the
2 answers
3,430 views
In a hockey match a hockey ball is hit 18m from the front of the goal. The ball leaves the hockey stick with initial velocity v
1 answer
1,695 views
Could a physics expert please help out with my other questions please?
1 answer
439 views
In a hockey match a hockey ball is hit 18m from the front of the goal. The ball leaves the hockey stick with initial velocity v
0 answers
880 views
The drag force acting on a car travelling at a speed v is given by the equation F=kAv^2
Where A is the area of the front of the
0 answers
741 views
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
0 answers
642 views
How is kinetic energy lost on impact to the ground?
0 answers
380 views
What does collision is INELASTIC mean?
3 answers
399 views
Image with a flat horizontal line with a curve on top (beg curve: X, top middle curve: Y, End bottom curve: Z)
Describe how the
0 answers
494 views
What does decreased in MAGNITUDE mean?
0 answers
316 views
(As physics working out please)
Which physical quantity has the same base units as energy? SHOW ALL WORKING OUT! A:Moment
0 answers
985 views
A 2.0 rigid rod with negligible weight is subject to forces in three different ways as shown in diagrams 1-3 below.
diagrams: 1-
0 answers
649 views
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
1 answer
510 views
Answers (50)
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
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
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
Thank you so much both of you really helpful!! :)
I dont know what to link or write to answer the question, i did your research task but am still confused
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.
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
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,
in which wire will the electrons move faster and why?
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
The "10-3" bit especially confuses me as i dont know where those number came from and wat it is for/ wat equation
i cant find the numbers for the equation yo gave me "NUMBER electrons per lenth=electron dinsity)*area"
is there a way to work this out?
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.
and one of the options is right so do that working out to find out which one
54(9.8*sin15+1.2) will show you the option it is
Choose from the options below:( to get you thinking) A 202 N B 222 N C 242 N D 262 N
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,
dGorxn = (n*dGo products) - (n*dGo reactants
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
How old the object containing the element is.
plz answer
i also dont get how to work out damons last line if his is right
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
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.
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
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
I reposted like you asked and i included the full question and my working out and what i need help with so pplease help
not 0
60
the cars acceleration is zero
by the wa for the table 5 is above 2 10 is above 8 andso on the space i leftr arent posted/shown
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
Please help i hvae been confused on this for ages
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
...........---y---- .........----------- ......------------------- ...-------------------------- . x----------------------------z is the picture
do the same positive power 2 on both sides cancel out or the opposite - and + powers
I am in as and we dont use those symbols so im confused
and equal on both side
It looks kinda like the last image i posted but its a curve
...........---y---- .........----------- ......------------------- ...-------------------------- . x----------------------------z
Y -- - -- --- - - ----- -- - -------------- - - ----------------- - X Z
Y - - - - - - - - - - X Z
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.
I think this is because of no movement...??
Here I've already written what I thought of the question in caps lock and the thing I dont know at the bottom.
I think magnitude means how much of something or how long the sides are or the angle.
I'm am very stuck on this one so I dont have working out and need all steps.
I know 1 is in equilibrium. 2 is not. 3 I'm not too sure about.
So would collision is ELASTIC mean: the two objects don't stick together and move with different velocities? ?????
