Answer;
-All of the above
- Water is essential for sustaining human life.
- Water is important for shipping and trade.
- Water is a valuable, profitable commodity.
Explanation;
-Water is one of the most important substances on earth. All plants and animals must have water to survive. If there was no water there would be no life on earth. Apart from drinking it to survive, people have many other uses for water such as cooking, washing clothes, cleaning, recreation, etc.
-Water is also essential for the healthy growth of farm crops and farm stock and is used in the manufacture of many products. Water is also important in our bodies; It facilitates digestion of food and absorption of nutrients through their dissolving in water, transports nutrients, chemicals and heat throughout the body. Water is our primary source of food.
W=mg=72×1.62=116.64
Explanation:
The gravity of the moon is 1.62
So,the answer is 116.64.
The relationship between the masses of the object and the gravitational force between them is a direct relationship
Explanation:
The gravitational force between two objects is given by the equation:
where
is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between them
We observe that:
- The gravitational force is proportional to the masses of the two objects, m1 and m2, so if the masses increase, the force will increase as well (so, this is a direct relationship)
- The gravitational force is inversely proportional to the square of the separation between the objects, so if the distance is increased, the force will decrease (so, this is an inverse relationship)
Learn more about gravitational force here:
brainly.com/question/1724648
brainly.com/question/12785992
#LearnwithBrainly
Answer:
The required skidded distance would be one-forth of the distance skidded if the velocity of the car becomes half.
Explanation:
If '' be the velocity of the car where the brakes are slammed on and 'a' be the constant deceleration gained by the car before coming to stop after skidding a distance 'X' at time 't' where final velocity '', then as can be seen from the figure,
If from any arbitrarily chosen point 'O', '' be the distance where the brakes are slammed on and '' be the distance from the same point 'O' where the car stops, then
Now if the car would have been moving with a velocity '' and would have been skidding a distance 'Y', then from the above equation substituting the velocity we can have
So, if the car were moving at half as fast under the same road conditions, it would have skidded by a distance which is one-forth of the present skidded distance.