Answer:
0.02
Explanation:
Force, where N is normal reaction and coefficient of kinetic friction is . Also, N is equivalent to mg ie N=mg where m is mass of an object and g is acceleration due to gravity. Making the subject of the formula then
Substituting F with 2 N, m with 10 kg and g with 9.81 then
Answer:
The increase in amount of ozone layer in stratosphere, will be beneficial in preventing the intense and harmful radiations, such as Ultra Violet Rays, to reach the surface of earth.
Explanation:
Ozone layer is formed when a single atom of oxygen (O) reacts with a molecule of oxygen (O₂) to form O₃ (Ozone). The ozone layer in the stratosphere is formed by the reaction of oxygen molecule (O₂) with a single atom of oxygen (O), which is formed by splitting up of an oxygen molecule, by the sunlight.
This ozone layer in stratosphere absorbs harmful radiations, such as Ultra Violet Rays and prevents them to reach the earth. If these rays reach the surface of earth, they can cause life damage to human bodies.
<u>Thus, the increase in amount of ozone layer in stratosphere, will be beneficial in preventing the intense and harmful radiations to reach the surface of earth.</u>
Answer:
10512m
Explanation:
Using formula for Uniform Velocity v = D/t ;
where v = Velocity (367 m/s); D = Vertical distance (?); t = length of time of motion (?).
To find t we use the Kinematic equation D= v₀t + (1/2(at²));
where D = Distance traveled (4020m); v₀ = initial velocity (0); a = acceleration;
4020 = (0)t + (1/2(9.8)t²)
4020 = 1/2(9.8)t²
t² = 4020/(1/2(9.8))
t = √(4020/4.9).
back to our formula for Uniform Velocity v = D/t;
D = vt
D = (367)(√(4020/4.9))
D ≈ 10512m
Answer:
Europium has a bright shiny surface. it's steel grey and has a melting point of 826 degree Celsius and a boiling point of about 1,489 degree Celsius.
Explanation:
the density is 5.24 grams per cubic centimeter.
X: No and Y: Sunlight Ingrid listed some important resources in a chart. Option D is correct.
<h3>What are fossil fuels?</h3>
Fossil fuels are obtained beneath the earth's crust which is formed due to buried plants and animals. the excessive heat under the earth's crust heats the plants and animals.
Fossil fuel took a long time to form it comes under the nonrenewable source of energy.
The use of fossil fuels such as coal, oil, and natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.
Ingrid listed some important resources in a chart is;
X: No
Y: Sunlight
Hence, option D is correct.
To learn more about the fossil fuel refer to the link;
brainly.com/question/2029072
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