Answer:
the element that takes part in a chemical reactions
there are usually two or more reactants in chemical reactions
except decomposition reactions
When an atom of nuclear<span> fuel (uranium) absorbs a neutron, the uranium will </span>fission into two smaller atoms (waste) and release one to three neutrons. The kinetic energy of the waste is used to heat the water for the steam turbine. The neutrons are used to fission<span> the next lot of uranium atoms and the process continues.</span>
The total distance traveled by Aliaa using her skateboard for 20 revolution of the wheels is equal to 3770 millimeters.
<u>Given the following data:</u>
Diameter of skateboard = 60 mm.
Number of revolution = 20 revolutions.
Radius = diameter/2 = 60/2 = 30 mm.
<h3>What is distance?</h3>
Distance can be defined as the amount of ground covered (traveled) by a physical object over a specific period of time and speed, regardless of its direction, starting point or ending point.
For one revolution of the wheels, the distance traveled by Aliaa using her skateboard is given by:
Distance = 2πr
Distance = 2 × 3.142 × 30
Distance = 188.5 mm.
Therefore, the total distance traveled by Aliaa using her skateboard for 20 revolution of the wheels is given by:
Distance = 188.5 × 20
Distance = 3770 millimeters.
Read more on distance per revolutions here: brainly.com/question/10989073
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Answer:
Tech B
Explanation:
There is a revolution of changes occur since the beginning of vehicle creation. Many technology came into existence and proposed us the best design, features and model. But as a machine, several fatigue or wear and tear can happen to this hence a proper maintenance is required in order for smooth running of your vehicle.
Many manufacturers have booklet that mention the proper maintenance interval for better running of your vehicle. As daily environment is changing, the maintenance requirements of a vehicle is also changing. New technology is bringing new features hence their maintenance rate as well as requirement also needs to be upgraded.
Answer:
Total displacement 155 m
Explanation:
From the question, the formula to apply will be that of cosine rule where:
where
a= 43 m , b=130m and c =? , <C=28° + 90° =118°
Substituting values in the equation as;
