• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Physics, Chemistry and Biology: Post your doubts here!

Iridescent

Iridescent

Messages
2,016
Reaction score
3,256
Points
273
shazmina said:
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w03_qp_1.pdf could sum1 help me wid question no 3...nd btw y de answer A...TNXS
Click to expand...

Speed = distance/time. As the car starts to accelerate, the speed is less in the beginning and keeps on increasing as the car accelerated. As the distance between the poles is constant, the time taken will be greatest Between pole 1 and pole 2 because the speed willl be least between pole 1 and pole 2.
Hope you got it :)
 
S

shazmina

Messages
3,770
Reaction score
34,813
Points
523
wo
Iridescent said:
Speed = distance/time. As the car starts to accelerate, the speed is less in the beginning and keeps on increasing as the car accelerated. As the distance between the poles is constant, the time taken will be greatest Between pole 1 and pole 2 because the speed willl be least between pole 1 and pole 2.
Hope you got it :)
Click to expand...
wooooooooow..Ahhmazing...tnxs a billion..:) i gt it
 
Iridescent

Iridescent

Messages
2,016
Reaction score
3,256
Points
273
shazmina said:
Cn u plz let me bt dis.... how is de thermal capacity linked with the time taken for heating... :)
Click to expand...

More thermal capacity means that it takes more energy to increase the temperature of the substance by 1K, compared to substance with less thermal capacity. As it takes more energy (heat), it will take more time to increase the temperature.
 
S

shazmina

Messages
3,770
Reaction score
34,813
Points
523
Iridescent said:
More thermal capacity means that it takes more energy to increase the temperature of the substance by 1K, compared to substance with less thermal capacity. As it takes more energy (heat), it will take more time to increase the temperature.
Click to expand...

tnxs a billion :)
 
salma_69

salma_69

Messages
85
Reaction score
135
Points
43
A radioactive isotope has a half-life of 6000 years.
How much time passes before the rate of emission from a sample of this isotope falls to 1/16 of its
original value?

A 6000 years
B 18000 years
C 24000 years
D 96000 years
can someone plz help me with this p1 physics question...:(
 
S

shazmina

Messages
3,770
Reaction score
34,813
Points
523
salma_69 said:
A radioactive isotope has a half-life of 6000 years.
How much time passes before the rate of emission from a sample of this isotope falls to 1/16 of its
original value?

A 6000 years
B 18000 years
C 24000 years
D 96000 years
can someone plz help me with this p1 physics question...:(
Click to expand...

frst of all my i knw de answer plzz....:)
 
You must log in or register to reply here.
Top