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. (1 point)
ounces
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 strand of hair from the mass of the grain of rice.
Mass of a grain of rice = 0.002 ounces
Mass of a strand of hair = 2.17 * 10 ^ - 5 ounces
Mass difference = Mass of a grain of rice - Mass of a strand of hair
Mass difference = 0.002 - 2.17 * 10 ^ - 5
To simplify, we can express 0.002 in scientific notation: 0.002 = 2 * 10 ^ -3
Therefore, the mass difference becomes:
Mass difference = 2 * 10 ^ -3 - 2.17 * 10 ^ -5
Now we need to subtract the two exponents:
Mass difference = 2 * 10 ^ -3 - 2.17 * 10 ^ -5
= (2 - 0.0217) * 10 ^ -3
= 1.9783 * 10 ^ -3
Therefore, a grain of rice is approximately 1.9783 * 10 ^ - 3 ounces heavier than a strand of hair.
To find out how much heavier a grain of rice is than a strand of hair, we need to subtract the mass of a strand of hair from the mass of a grain of rice.
Given:
Mass of a strand of hair = 2.17 * 10^(-5) ounces
Mass of a grain of rice = 0.002 ounces
Step 1: Subtract the mass of a strand of hair from the mass of a grain of rice.
0.002 ounces - 2.17 * 10^(-5) ounces
Step 2: Subtract the numbers before the decimal point. 0.002 - 2.17 = -2.168
Step 3: Determine the exponent. The exponent for scientific notation is determined by counting the number of zeros in the result. In this case, there are four zeros in 2.168.
Step 4: Write the result in scientific notation.
-2.168 * 10^4 ounces
So, a grain of rice is -2.168 * 10^4 ounces heavier than a strand of hair.
To find out how much heavier a grain of rice is than a strand of hair, we need to subtract the mass of the hair from the mass of the rice.
The given mass of a strand of hair is 2.17 * 10^(-5) ounces.
The given mass of a grain of rice is 0.002 ounces.
Subtracting the mass of the hair from the mass of the rice:
0.002 - 2.17 * 10^(-5) = 0.00198
Since the difference is already expressed in ounces, we don't need to convert it to scientific notation. So, a grain of rice is 0.00198 ounces heavier than a strand of hair.