Answer:
4.D.all of them are correct
5. B.Making observation
Answer:
Physical properties are those that can be determined or measured without changing the composition or identity of the substance. These properties include color, odor, taste, density, melting point, boiling point, conductivity, and hardness.
Explanation:
If you meant the car travels 10 meters or miles then the answer would be 5m/s because v=d/t (v=10/2)
Answer:
Explanation:
Let mass of ice required is m kg
Heat gained by ice to attain zero degree
= m x 14.1 x 2100
= 29610m J
Heat gained by ice to melt = m x 3.34 x 10⁵ J
= 334000m J
Heat gained by water at zero degree to warm up to 27 degree
m x 4190 x 27 =113130 J
Total heat gained = 476740m J
Heat lost by hot water to cool up to 27 degree
.24 x 4190 x ( 75.8 - 27 )
= 49073.28 J
Heat lost = heat gained
476740 m = 49073.28
m = 49073.28/476740 kg
=102.93 gm
To assess your health status, it is necessary to take the physical fitness test, which will determine how healthy you are, according to some questions, such as how often you have seen a doctor, how is your heart, etc.
Some sample questions to assess your health status are:
- Have you seen a pshysician?
- Whats your heart condition according to your physician?
- Are you recommended to do some physical activity?
- Do you feel any chest pain if you are not doing physical activity?
- This past few days, do you feel any chest pain if you are not doing phsysical activity?
- Do you ever lose consciusness or lose your balance because of dizziness?
- Do you have any joint or bone injury or problem that could be made worse by performing physical activity?
Therefore, the physical fitness test is necessary so that a person can perform physical activities safely, avoiding injuries and other associated risks.
Learn more here:
brainly.com/question/24757304