A strand of hair has an average mass of 2.17×10^−5 ounces. A grain of rice has an average mass of 0.002 ounces. How much heavier is a grain of rice than a strand of hair? Express your answer in scientific notation. ____ x ____ ounces
To find the difference in mass between a grain of rice and a strand of hair, we need to subtract the mass of a strand of hair from the mass of a grain of rice.
Mass of a grain of rice: 0.002 ounces
Mass of a strand of hair: 2.17×10^−5 ounces
Difference in mass: 0.002 - 2.17×10^−5 = 0.002 - 0.0000217 = 0.0019783 ounces
In scientific notation, this is 1.9783×10^−3 ounces.
To find out how much heavier a grain of rice is than a strand of hair, we need to subtract the mass of the strand of hair from the mass of the grain of rice.
The mass of a strand of hair is 2.17 x 10^(-5) ounces.
The mass of a grain of rice is 0.002 ounces.
Subtracting the mass of the hair from the mass of the rice:
0.002 ounces - 2.17 x 10^(-5) ounces = 0.002 - 0.0000217 = 0.0019783 ounces.
Therefore, a grain of rice is 1.9783 x 10^(-3) ounces heavier than a strand of hair.
To find out how much heavier a grain of rice is compared to a strand of hair, we need to subtract the mass of the hair from the mass of the rice.
The mass of a strand of hair is given as 2.17×10^−5 ounces and the mass of a grain of rice is given as 0.002 ounces.
Subtracting these two values gives us:
0.002 - 2.17×10^−5 ounces
To perform this subtraction, we convert the mass of the hair into decimal form:
2.17×10^−5 ounces = 0.0000217 ounces
Now we can do the subtraction:
0.002 - 0.0000217 = 0.0019783 ounces
The difference in mass is 0.0019783 ounces.
Expressed in scientific notation, this is 1.9783×10^−3 ounces.
Therefore, a grain of rice is 1.9783×10^−3 ounces heavier than a strand of hair.