Answer: 60 m/s
Explanation:
KE = 1/2mv^2
v = √ (2KE / m)
v = √ (2 x 36 J)/(0.02 kg)
v = √ 72 J/0.02 kg
v = √ 3600 m/s
v = 60 m/s
Answer:
The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the dependent variable. ... The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable.
Answer:
![F=8.45\times 10^{-8}\ N](https://tex.z-dn.net/?f=F%3D8.45%5Ctimes%2010%5E%7B-8%7D%5C%20N)
Explanation:
Given that,
Mass of a boy is 78 kg
Mass of a girl is 65 kg
We need to find the force of gravitational attraction between them if they are 2 m away.
The formula for the gravitational force is given by :
![F=\dfrac{Gm_1m_2}{r^2}\\\\F=\dfrac{6.67\times 10^{-11}\times 78\times 65}{(2)^2}\\\\=8.45\times 10^{-8}\ N](https://tex.z-dn.net/?f=F%3D%5Cdfrac%7BGm_1m_2%7D%7Br%5E2%7D%5C%5C%5C%5CF%3D%5Cdfrac%7B6.67%5Ctimes%2010%5E%7B-11%7D%5Ctimes%2078%5Ctimes%2065%7D%7B%282%29%5E2%7D%5C%5C%5C%5C%3D8.45%5Ctimes%2010%5E%7B-8%7D%5C%20N)
So, the force between them is
.
Very unlikely. This is not really a good question for Brainly.