Answer:
stone A is diamond.
Explanation:
given,
Volume of the two stone = 0.15 cm³
Mass of stone A = 0.52 g
Mass of stone B = 0.42 g
Density of the diamond = 3.5 g/cm³
So, to find which stone is gold we have to calculate the density of both the stone.
We know,
density of stone A
density of stone B.
Hence, the density of the stone A is the equal to Diamond then stone A is diamond.
Answer:
Explanation:
area of loop = 6.3 x 10⁻⁴ m²
Total flux ( initial )
nB A
= 150 x .06 x 6.3 x 10⁻⁴
Final magnetic flux
150 x .03 x 6.3 x 10⁻⁴
change in flux
150 x .06 x 6.3 x 10⁻⁴ - 150 x .03 x 6.3 x 10⁻⁴
= 28.35 x 10⁻⁴ Weber .
b ) voltage induced = rate of change of flux
= change in flux / time
= 28.35 x 10⁻⁴ / 15 x 10⁻³
= 1.89 x 10⁻¹ V
c )
current induced = voltage induced / resistance
= 1.89 x 10⁻¹ / 4
= .4725 x 10⁻¹ A
= 47.25 m A .
The same force accelerates a small mass faster than
it accelerates a large mass.
It's easier to get a little red wagon going by pushing it
than it is to get a school bus going by pushing it.
The answer is True
Burning fossil fuels DOES causes more air pollution than soil erosion, dust storms, and forest fires