Answer:
Sulfur
Selenium
Nitrogen
Oxygen
Explanation:
Sulfur is the most reactive out of the four and Oxygen is the least reactive out of the four.
Answer:
The change in power is 4400 W.
Explanation:
Given that,
Power = 10 kW
Speed = 10 m/s
Increases speed = 12 m/s
Given equation is,

We know that,
The power is,

Put the value of F into the formula



We need to calculate the new power
Using formula for power

Put the value into the formula



We need to calculate the change in power
Using formula of change in power

Put the value into the formula




Hence, The change in power is 4400 W.
Answer:
The height is 0.1014 m
Explanation:
Given that,
Mass = 0.0400 g
Charge 
Time t = 0.0420 s
Electric field 
We need to calculate the electric force on the particle
Using formula of electric force

Put the value into the formula


We need to calculate the gravitational force
Using formula of force

Put the value into the formula


We need to calculate the net force



We need to calculate the acceleration
Using newton's law




We need to calculate the height
Using equation of motion



Hence, The height is 0.1014 m
How can atoms make up all of the substances around you? Because there are a lot of atoms in the substances. ... If atoms are made of smaller parts such as electrons,why are atoms considered the basic unit of matter? It is the smallest unit that has the chemical property's of an element.
Answer:
I world say A is the answer 80% sure