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  1. M

    Difference between fluorescent strip and compact fluorescent lamp

    So fluorescent strip is really the long cylindrical tube while the fluorescent lamp is the twisted one? Honestly i am not familiar with the CF globes that you mention. Thank you so much for the help...
  2. M

    Difference between fluorescent strip and compact fluorescent lamp

    i am from the Philippines, thank you so much. i really just get confused between the two.
  3. M

    Difference between fluorescent strip and compact fluorescent lamp

    How about in the appearance? how do they differ?
  4. M

    Difference between fluorescent strip and compact fluorescent lamp

    I just want to know the difference between fluorescent strip and compact fluorescent lamp... Thanks.
  5. M

    Specific heat capacity and final temperature

    i think it should be100C - tf, since there is a decrease in temperature. my answer is 90C, is that correct?
  6. M

    Specific heat capacity and final temperature

    is it 2800 g x 0.43J/gC x 70 C?
  7. M

    Specific heat capacity and final temperature

    i solve it again and i got 114 as the answer because of 0.43KJ/KgC, it will be 0.43J/gC... Please help me with this one, what makes it wrong?
  8. M

    Specific heat capacity and final temperature

    Homework Statement A 2.8 kg sample of a metal with a specific heat of 0.43KJ/KgC is heated to 100.0C then placed in a 50.0 g sample of water at 30.0C.* What is the final temperature of the metal and the water? Homework Equations heat loss by the metal = heat gain by the water The...
  9. M

    Specific Heat Capacity of aluminum rivets

    Thanks a lot.... it really helps... God bless....
  10. M

    Specific Heat Capacity of aluminum rivets

    i was able to solve the second, i got 45g using the formula given by rl.bhat, thanks a lot.. just the first, please...
  11. M

    Specific Heat Capacity of aluminum rivets

    please explain to me why the answer in the first question is zero? Thanks..
  12. M

    Specific Heat Capacity of aluminum rivets

    Homework Statement Some aluminum rivets of total mass 170 g at 100°C are emptied into a hole in a large block of ice at 0°C' a. What will be the final temperature of the rivets? b. How much ice will melt? Homework Equations none The Attempt at a Solution Please help me answer...
  13. M

    Throws a stone horizontally with a velocity of 20ms-1

    Thank you so much for the help...
  14. M

    Throws a stone horizontally with a velocity of 20ms-1

    so i got all correct? even the second?
  15. M

    Throws a stone horizontally with a velocity of 20ms-1

    how about the number 2? this is my solution: s = 1/2(u+v)t = 18.75 m
  16. M

    Throws a stone horizontally with a velocity of 20ms-1

    tell me if i got 1b correct. i use your formula, s = 20 m/s (10.68 s) s = 213.6 m... is it right? thanks a lot....
  17. M

    Throws a stone horizontally with a velocity of 20ms-1

    is this correct for 1a. -560 = -1/2 (9.81) t^2 t = 10.68 im not sure if that s correct
  18. M

    Throws a stone horizontally with a velocity of 20ms-1

    so t = 10.68... by the way where did you get 500? is it 560?
  19. M

    Throws a stone horizontally with a velocity of 20ms-1

    i didnt get your equation because of so much symbols, sorry...
  20. M

    Throws a stone horizontally with a velocity of 20ms-1

    what is the answer on the problem? i am totally confused.. please help me...
  21. M

    Throws a stone horizontally with a velocity of 20ms-1

    what is the answer then? please show the solution...
  22. M

    Throws a stone horizontally with a velocity of 20ms-1

    for 1a. i use v = u + at, b. s = ut +1/2 at squared for 2. s = 1/2 (u +v)t are those correct?
  23. M

    Throws a stone horizontally with a velocity of 20ms-1

    wait i'll show you when i got home.. thanks...
  24. M

    Throws a stone horizontally with a velocity of 20ms-1

    Homework Statement 1. Don Joriel stands on a vertical cliff edge throwing stones into the sea below. He throws a stone horizontally with a velocity of 20ms-1, 560 m above sea level. a. How long does it take for the stone to hit the water from leaving Don Joriel’s hand? Use g =...
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