Answer: When a liquid or gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. ... The molecules move more slowly and take up less space. Therefore temperature can affect density.
Explanation:
Answer:
Explanation:
according to third equation of motion
2as=vf²-vi²
vf²=2as+vi²
vf=√2as+vi²
vf=√2as+vi
vf=√2*2*4+3
vf=√16+3
vf=4+3=7
so final velocity is 7 m/s
The correct answer would be the sun
Answer:
a) 
b) 
c) 
Explanation:
From the question we are told that:
Radius 
Acceleration 
a)
Generally the equation for speed of the car is mathematically given by
b)
Generally the equation for distance traveled of the car is mathematically given by
c)
Generally the equation for time of the car is mathematically given by
Answer:
Gastric juice is an acidic substance ( Strongly acidic)
Explanation:
According to the table shown in the question:
- Gastric juice turns blue litmus paper to red
- It is neutral to red litmus
Note: Any substance that turns blue litmus paper red and is neutral to red litmus paper is an acidic substance.
Moreover, gastric juice is a combination of Pepsin and HCl and it has a PH that varies between 1 and 3. This PH is typical of a strongly acidic substance.
