You've just solved a problem and the answer is the mass of an electron, me=9.11×10−31kilograms. How would you enter this number
into the answer box?
Enter your answer in kilograms using three significant figures. Note that the units are provided for you to the right of the answer box.
Enter your answer in kilograms using three significant figures. Note that the units are provided for you to the right of the answer box.
2 answers:
The mass of an electron up to three significant digits is written as .
Further Explanation:
The significant numbers in a measured quantity are the numbers that have their role in representation of the measured quantity in terms of the resolution of the quantity.
The scientific notation for any measured quantity is expressed as:
Here, are the combined significant digits in the quantity.
The number of digits present in represents the number of significant digits in the representation of the quantity.
The following is the list of rules to be considered for the significant numbers.
a) Each and every non-zero number is a significant number.
b) A zero present between two significant numbers is also a significant number.
c) The zeros written after the decimal point are significant numbers.
d) Only zero before a decimal is not a significant number.
Therefore, the mass of an electron up to three significant digits is written as and the three significant digits in the number are
.
Learn More:
- which of the following is not a component of a lever brainly.com/question/1073452
- forces of attraction limit the motion of particles most in brainly.com/question/947434
- the amount of kinetic energy an object has depends on its brainly.com/question/137098
Answer Details:
Grade: High School
Chapter: Significant Figures
Subject: Physics
Keywords: Significant figures, answer box, rules, non-zero, scientific notation, resolution, measured quantity, physical quantity, mass of electron.
The mass of an electron, me, 9.11 × 10⁻³¹ kilograms shows there are 3 important numbers in them, namely numbers 9, 1, and 1
<h3><em>Further explanation</em></h3>Significant numbers are obtained from measurement results of exact numbers and the last number estimated
This is called significant numbers
the scientific notation can be described as:
a, ... x 10ⁿ
a, ... called a significant number
10ⁿ is called a big order
Rules for significant numbers in general:
- 1. All non-zero numbers are significant numbers
- 2. a zero which is located between two non-zero numbers including a significant number
- 3. all zeros are located in the final row written behind the decimal point of the include significant number
- 4. zero decimal point is the not significant number
From the numbers known in the question amounting to 9.11 × 10⁻³¹ kilograms shows there are 3 important numbers in them,(symbol a, before a big order ,called a significant number) namely numbers 9, 1, and 1
<h3><em>Learn more</em></h3>significant figures
significant figures in the following number: 5.67 x 106
the number of significant figures is 0.025
0.080 significant figures
the fewest number of significant figures
Keywords : significant number, the scientific notation, decimal point, a big order
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Answer:
a = 0.5 m/s²
Explanation:
Applying the definition of angular acceleration, as the rate of change of the angular acceleration, and as the seats begin from rest, we can get the value of the angular acceleration, as follows:
ωf = ω₀ + α*t
⇒ ωf = α*t ⇒ α = =
The angular velocity, and the linear speed, are related by the following expression:
v = ω*r
Applying the definition of linear acceleration (tangential acceleration in this case) and angular acceleration, we can find a similar relationship between the tangential and angular acceleration, as follows:
a = α*r⇒ a = 0.067 rad/sec²*7.5 m = 0.5 m/s²