The letter “j” is never found on the periodic table. As for numbers, there’s an infinite amount
B
Weight is caused by the influence of gravity on matter/mass. Weight is given by the formulae;
Weight = Mass * Gravitational acceleration
On earth, the gravitation acceleration is a constant 10m/s2
Therefore the weight will be influenced by mass of the object in a direct relationship.
An increase in mass will cause a proportionate increase in weight.
Explanation:
Gravity is not constant across the universe with larger celestial bodies have a greater gravitational pull. Therefore an object with the same mass on earth may weigh differently on another celestial body with different gravitational acceleration. An example is the Moon. Due to the fact that the Moon has approximately ¹/3 of earth’s gravitational force, astronauts weight ¹/3 times less on the moon than on earth.
Learn More:
For more on weight and mass check out;
brainly.com/question/1265220
brainly.com/question/1377794
brainly.com/question/3272477
brainly.com/question/5310868
brainly.com/question/11248471
brainly.com/question/1658757
#LearnWithBrainly
Answer
The challenge when trying to protect the environment is expensive clean energy startup cost
Explanation
In attempts to protect the environment, energy users across the globe are shifting to new renewable energy resources which are faced by the challenge of high capital cost. Renewable energy technologies are cheap to operate but very expensive to build. The perception is that renewable energy resources are risky because they require higher construction costs.
<span>According to the lecture, all of the following are defense mechanisms except: Moderate Exercise
A defense mechanism is the actions that people do as an excuse so they don't have to deal with their real problem. Moderate exercise on the other hands is the action that people do to maintain their health.</span>
Answer: An alpha particle is a helium-4 nucleus, it contains gwo protons and two neutrons. So, alpha decay, giving off an alpha particle, does the following:
1)reduces the atomic number (number of just protons) by two. Plutonium has atomic number of 94, take two protons away and you are left with 92 which corresponds to uranium.
2) reduces the mass number (protons plus neutrons) by 4. If you start with 239 and subtract two protons and two neutrons, you are left with 235.
Explanation:
