Recent content by dasher

ok thanks alot. what about the normal screw and washer instead of the sheet-metal screws? will it work? wouldn't the screws affect how the bimetallic strip bend? and yep! but after i calculated, i got ~33 /in, what does that mean? i think i might have made some calculation errors because 33...

true. i hope they gave me correct info. i hope the glue works! and okay. now i see the rationale behind making a bimetallic instead of monometallic thermometer! thanks a lot ((: according to the formula in wikipedia to calculate the curvature of the bimetallic strip, (delta)T is the...

Thanks alot! I am intending to use E6000 glue to stick the metals together. The staff at the art and crafts shop I went to recommended me that. Will that work? I will calculate if the bimetallic strip will work in theory soon. (: As for a monometallic strip, can't the temperature change...

I am currently working on a bimetallic thermometer using alumium and brass. The coefficient of linear and volumetric thermal expansion of aluminium is 23 and 69 respectively. The coefficient of linear and volumetric thermal expansion of brass is 19 and 57 respectively. I am using...

there are 3 different values there. the oiint in telling you that b>a is to make sure you know that b does not equal to a. because, is b=a, the values for all the expressions will be the same. but in this case, since the 2 angles are different, sina=cosb. also, sinb=cosa. if you don't get this...

ya. use the F=ma formula. but remember, all units must be SI units. this is just a general reminder.

F=ma. the force the horse and cart exert on each other is the same. however, due to the difference in mass between the horse and cart, the acceleration of the 2 parties involved will be different. in this case of course, i would assume that the mass of the cart is greater than that of the horse...

so does this mean that the statement (or fact): "The speed of light relative to still water is 2.25*10^8 m/s." does not violate the theory of special relativity? However, can a more elaborate explanation be given to why this is so?

the speed of light relative to glass, still water, or other media is not 3*10^8 m/s (otherwise known as c). This is due to the refractive index, the refraction of light itself. Is this actually a violation of the theory of special relativity?

:confused: so does this mean that i can only answer the question if i leave it as "close to the speed of light"?

what i mean is "IF". if i do, what will i see in the mirror?

in one of the previous topics, it was suggested that if one carries a mirror and travels at a speed of 0.99c, he will still see his own reflection in the mirror because the theory of special relativity states that the speed of light is constant in all inertial frames. However, what if i change...