Answer:
42 minutes
Explanation:
First, let us find out the time required by the roommate, who is driving the truck, to reach the city.
We know that,
Now, you are planning to rest a bit after traveling for an hour. So,
distance covered in that 1 hour = 
time required by you to cover the total distance = 
If you wish reach at the destination half an hour (0.5 h) before your roommate, you can expend a total of 
throughout your journey.
Hence, you can rest for 
Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass.
The US and governmental protection agency sets limit your exposure to x-rays and gamma rays in part because they recognized that this form of releasing can cause cancer for more information on the classification system is used by these agencies seen on and probably human characters
Answer:
Hypothesis:
The amount of limestone that dissolves in the acid is directly proportional to the concentration of acid used.
Explanation:
Acids dissolve limestone according to the following general equation;
2HX(aq) + CaCO3(s) -------> CaX2(aq) + H2O (l) + CO2(g). Where HX represents any acid at all.
This dissolution process is a chemical reaction. It was experimentally observed that the amount of limestone that dissolved in acid depends on the concentration of acid. Various concentrations of acid were then prepared and a particular mass of limestone was dissolved in each concentration of acid. The amount of limestone dissolved in each case was carefully noted.
It was observed that as the concentration of acid increased, the amount of limestone dissolved increased also and vice versa, hence the hypothesis proposed above.
Answer:
a thing or things belonging to someone; possessions collectively.
Explanation:
