Answer:
![\boxed {\boxed {\sf 7.84 \ Joules}}](https://tex.z-dn.net/?f=%5Cboxed%20%7B%5Cboxed%20%7B%5Csf%207.84%20%5C%20Joules%7D%7D)
Explanation:
The formula for potential energy is:
![PE=m*g*h](https://tex.z-dn.net/?f=PE%3Dm%2Ag%2Ah)
where <em>m </em>is the mass, <em>g</em> is the gravitational acceleration, and <em>h</em> is the height.
The mass of the book is 0.4 kilograms. The gravitational acceleration on Earth is 9.8 m/s². The height of the book is 2 meters.
![m=0.4 \ kg \\g=9.8 \ m/s^2 \\h=2\ m](https://tex.z-dn.net/?f=m%3D0.4%20%5C%20kg%20%5C%5Cg%3D9.8%20%5C%20m%2Fs%5E2%20%5C%5Ch%3D2%5C%20m)
Substitute the values into the formula.
![PE=(0.4 \ kg)(9.8 \ m/s^2)(2 \ m)](https://tex.z-dn.net/?f=PE%3D%280.4%20%5C%20kg%29%289.8%20%5C%20m%2Fs%5E2%29%282%20%5C%20m%29)
Multiply the first two numbers.
- 0.4 kg*9.8 m/s²= 3.92 kg*m/s²
- If we convert the units now, the problem will be much easier later on.
- 1 kg*m/s² is equal to 1 Newton. So, our answer of 3.92 kg*m/s² is equal to 3.92 N
![PE=(3.92 \ N )(2 \ m)](https://tex.z-dn.net/?f=PE%3D%283.92%20%5C%20N%20%29%282%20%5C%20m%29)
Multiply.
- 3.92 N* 2 m=7.84 N*m
- 1 Newton meter is equal to 1 Joule (this is why we converted the units).
- Our answer is equal to<u> 7.84 Joules.</u>
![PE=7.84 \ J](https://tex.z-dn.net/?f=PE%3D7.84%20%20%5C%20J)
Answer:
Explanation:
The climate of any particular place is influenced by a host of interacting factors.
The factor that influence climate are
1. latitude
2. elevation,
3. nearby water
4. ocean currents
5. topography
6. vegetation
7. prevailing winds.
The primary cause of climate change is the burning of fossil fuels, such as oil and coal, which emits greenhouse gases into the atmosphere—primarily carbon dioxide. Other human activities, such as agriculture and deforestation, also contribute to the proliferation of greenhouse gases that cause climate change.
Topics examined in social psychology include: the self concept, social cognition, attribution theory, social influence, group processes, prejudice and discrimination, interpersonal processes, aggression, attitudes and stereotypes.
Answer:
Potential difference and charge will also increase.
Explanation:
Asking that :
What will happen to the charge and potential difference if the plate area were increased while the plate separation remains unchanged?
The charge is directly proportional to area of the plate. That is, increase in area of the plate of a capacitor will lead to the increase in the charges between the plates.
And since charge is also proportional to the magnitude of potential difference between the plates from the definition of capacitance of a capacitor which says that:
Q = CV
Therefore, increase in the area of the plate will also lead to increase in potential difference between the plates.
Therefore, if the plate area were increased while the plate separation remains unchanged, the charge and potential difference between them will also increase.
Answer:
the ability of data to be duplicated well described reproducibility
Explanation:
Reproducibitity of a data is the ability of a data to be produced in multiple times using the same procedure. It is used to test how precise a data is and it's usually known as standard deviation
Reproducibility is the closeness of the understanding between the consequences of measurements of the equivalent measurand did with a similar procedure depicted in the relating logical proof (for example a distribution in a companion surveyed diary).