The Bohr radius of a hydrogen atom is 0.0000000000529. Express the Bohr radius of a hydrogen atom in scientific notation.(1 point)
7 answers
The scientific notation for the Bohr radius of a hydrogen atom is 5.29 x 10^-11.
what is the sum of 7x10^-8 and 6x10^-8
To add these numbers, we need to make sure that they have the same exponent. Since both numbers are in scientific notation and have a negative exponent, we can rewrite them as:
7x10^-8 = 0.7x10^-7
6x10^-8 = 0.6x10^-7
Now we can add them:
0.7x10^-7 + 0.6x10^-7 = (0.7 + 0.6) x 10^-7 = 1.3x10^-7
Therefore, the sum of 7x10^-8 and 6x10^-8 is 1.3x10^-7.
7x10^-8 = 0.7x10^-7
6x10^-8 = 0.6x10^-7
Now we can add them:
0.7x10^-7 + 0.6x10^-7 = (0.7 + 0.6) x 10^-7 = 1.3x10^-7
Therefore, the sum of 7x10^-8 and 6x10^-8 is 1.3x10^-7.
Which of these measurements has three significant digits?(1 point) Responses 134 meters 134 meters 56.09 inches 56.09 inches 0.52 centimeters 0.52 centimeters 8009 miles 8009 miles
The measurement with three significant digits is 134 meters.
Can the side lengths of a triangle be 3, 6 and 9? (1 point) Responses yes yes no
No, the side lengths of a triangle cannot be 3, 6, and 9. In order for a triangle to be valid and satisfy the triangle inequality theorem, the sum of the two shorter sides must be greater than the length of the longest side. In this case, 3 + 6 = 9, which is not greater than 9. Therefore, a triangle with side lengths of 3, 6, and 9 cannot exist.
1 answer