Answer:
n = 25,464,790.89 revolutions
The tires have made 25,464,790.89 revolutions
Explanation:
Given;
Radius of tires r = 0.5 m
Total distance travelled d = 80,000 km = 80,000,000 m
1 revolution = 2πr
Total distance d = number of revolutions n × 2πr
d = n×2πr
d = 2πnr
Making n the subject of formula;
n = d/2πr
Substituting the given values;
n = (80,000,000)/(2×π×0.5)
n = 25,464,790.89470 revolutions
n = 25,464,790.89 revolutions
The tires have made 25,464,790.89 revolutions
Answer:
Shawn's kinetic energy is 61.45 J.
Explanation:
Given;
Mass of the system is, 
Displacement of the bike is, 
Time taken is, 
Let the constant velocity be 
.
For constant velocity, magnitude of velocity is given as distance by time.
Therefore, 
Now, kinetic energy of a body is given as:
Here, 
Therefore, Shawn's kinetic energy is 61.45 J.
Answer:
what scenario i dont understand
Explanation:
step by step explenation
Answer:
Shiny metals such as copper, silver, and gold are often used for decorative arts, jewelry, and coins.
Strong metals such as iron and metal alloys such as stainless steel are used to build structures, ships, and vehicles including cars, trains, and trucks.
Some metals have specific qualities that dictate their use. For example, copper is a good choice for wiring because it is particularly good at conducting electricity. Tungsten is used for the filaments of light bulbs because it glows white-hot without melting.
Nonmetals are plentiful and useful. These are among the most commonly used:
Oxygen, a gas, is absolutely essential to human life. Not only do we breathe it and use it for medical purposes, but we also use it as an important element in combustion.
Sulfur is valued for its medical properties and as an important ingredient in many chemical solutions. Sulfuric acid is an important tool for industry, used in batteries and manufacturing.
Chlorine is a powerful disinfectant. It is used to purify water for drinking and fill swimming pools.
Explanation:
Homie I don’t know either♀️Drop out of schl ig ;-;
