N9.70
N11.70
N12.40
N15.90
N17.60
Correct answer is B
No explanation has been provided for this answer.
When water is heated between 0°C and 4°C, it's density
increases for a while and then decreases
decreases for a while and then increases
increases
decreases
remains constant.
Correct answer is A
No explanation has been provided for this answer.
6.0mm
18.0mm
30.0mm
60.0mm
120.0mm
Correct answer is C
No explanation has been provided for this answer.
The speed of sound travelling in various media increases in the order:
air, iron bar, water
air, water, iron bar
iron, bar water, air
water, air, iron bar
water, iron bar, air
Correct answer is B
No explanation has been provided for this answer.
0.0167 A
0.1670 A
1.6700 A
16.7000 A
167.0000 A
Correct answer is B
No explanation has been provided for this answer.