Q&A Forum
1106 questions found
A 200 cm titanium bar increases in length by 2 cm when its temperature rises by 100 degrees C. Its linear expansivity is
- 0.0101 per degrees C.
- 0.0001 per degrees C.
- 0.001 per degrees C.
Jordi asking:
i dont understand it
Convert 15 degrees C to degrees F
- 37 degrees F.
- 59 degrees F.
- 62 degrees F.
Jordi asking:
it doesnt make sense.The formula is F=5/9*15+32 and the asnwer isnt close to 59 what is happening?
Select the correct statement from the following.
- Matter can only exist in one of four states.
- Matter can exist in only two basic states.
- Matter can only exist in one of three states.
Jordi asking:
in another question we had 3 states now we have 4?The fourth is plasma but why?
Which of the following 2 points are equal?
- -32 degrees C and -0 degrees F.
- 40 degrees C and 40 degrees F.
- -40 degrees C and -40 degrees F.
Jordi asking:
why?
If you apply this waveform to this circuit, what is the output across the capacitor?
- Pulsed negative
- Pulsed positive
- Zero
vale asking:
can someone explain?