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can any 1 tell me about
vectors and scalars??????
vectors and scalars??????
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Q1. a) av.speed= (v+u)/2Q1: A train increases its speed steadily from 10m/s to 20m/s in 1 minute.
a) What is its average speed during this time in m/s?
b) How far does it travel while increasing its speed?
Q2: An aircraft travelling at 600 km/h accelerates steadily at 10 km/h per second.
Taking the speed of sound as 1100 km/h at the aircraft's altitude , how long
will it take to reach the ''sound barrier''?
Q3: If a bus travelling at 20 m/s is subject a steady deceleration of 5 m/s2 , how long will it take to come to rest?
(guyz can any 1 of u can solve dis ques 4 me???????)
moment is the turning effect , it's in equilibrium when the clockwise moment is equal to the anticlockwise moment or in other words force1 x distance1 =force2 x distance2 (p.s. the distance is from the pivot to the mass or force ) .. hope that helpsI am having problem with moments. Especially stable,neutral and unstable equilibrium..plx help!!!!!!!!!!
The person who answered these questions for you did them all right. However, I noticed that for Q1-b) he used a very complex and time-consuming formula. I have a better formula and an easier one to use, d=((v+u)/2)t. Therefore, you add both initial speed and final speed to get 30 m/s. You then divide by 2 to get avg. speed, which is 15 m/s and you then multiply by time, which is 60 s. You will get 900 m.Q1: A train increases its speed steadily from 10m/s to 20m/s in 1 minute.
a) What is its average speed during this time in m/s?
b) How far does it travel while increasing its speed?
Q2: An aircraft travelling at 600 km/h accelerates steadily at 10 km/h per second.
Taking the speed of sound as 1100 km/h at the aircraft's altitude , how long
will it take to reach the ''sound barrier''?
Q3: If a bus travelling at 20 m/s is subject a steady deceleration of 5 m/s2 , how long will it take to come to rest?
(guyz can any 1 of u can solve dis ques 4 me???????)
The person who answered these questions for you did them all right. However, I noticed that for Q1-b) he used a very complex and time-consuming formula. I have a better formula and an easier one to use, d=((v+u)/2)t. Therefore, you add both initial speed and final speed to get 30 m/s. You then divide by 2 to get avg. speed, which is 15 m/s and you then multiply by time, which is 60 s. You will get 900 m.
I am applying or my IGCSE this May/June.oh ya datz more better btw r u doin IGCSE or GCE
I am applying or my IGCSE this May/June.
I understand, and that's why I am telling you I am applying for IGCSE, so obviously, I study IGCSE Physics.no man m sayin dat r u studin IGCSE physics of GCE physics
No, my location is United Arab Emirates, which apparently, is next to where you live.oho...kkk.......so r u living in pakistan????
I am taking 8 subjects this year.The potential difference across the variable resistor is 7.0 V and that across the
ammeter is zero.
(i) Calculate the potential difference across the magnetising coil.
potential difference = .................................
(ii) State the general principle used in making this calculation.
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vectors are quantities which has both magnitude and direction eg : velocity , the velocity is constant when your moving in one direction with the same speed , once you change direction or speed , it changes . scalars has only magnitude eg: speed , is the distance moved per unit time , without consideration of direction . hope that helpscan any 1 tell me about
vectors and scalars??????
Yeah Indeed that formula saves timeThe person who answered these questions for you did them all right. However, I noticed that for Q1-b) he used a very complex and time-consuming formula. I have a better formula and an easier one to use, d=((v+u)/2)t. Therefore, you add both initial speed and final speed to get 30 m/s. You then divide by 2 to get avg. speed, which is 15 m/s and you then multiply by time, which is 60 s. You will get 900 m.
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