<span>French and Indian War began in 1754 and ended with the Treaty of Paris in 1763. The war provided Great Britain enormous territorial gains in North America, but disputes over subsequent frontier policy and paying the war’s expenses led to colonial discontent, and ultimately to the American Revolution.</span>
On a velocity - time graph, if the line crosses the x - axis it depicts that the object has started moving in the opposite direction.
Answer:
3.122×10¹⁴ g/cm³
Explanation:
Diameter of neutron star = 23 km = 2300000 cm
Radius of neutron star = 2300000/2 = 1150000 cm = r
Mass of neutron star = 1.989 × 10³⁰ kg = 1.989 × 10³³ g = m
Volume of neutron star
![v=\frac{4}{3}\pi r^3\\\Rightarrow v=\frac{4}{3}\pi 1150000^3](https://tex.z-dn.net/?f=v%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3%5C%5C%5CRightarrow%20v%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%201150000%5E3)
Density = Mass / Volume
![\rho=\frac{m}{v}\\\Rightarrow \rho=\frac{1.989\times 10^{33}}{\frac{4}{3}\pi 1150000^3}\\\Rightarrow \rho=3.122\times 10^{14}\ g/cm^3](https://tex.z-dn.net/?f=%5Crho%3D%5Cfrac%7Bm%7D%7Bv%7D%5C%5C%5CRightarrow%20%5Crho%3D%5Cfrac%7B1.989%5Ctimes%2010%5E%7B33%7D%7D%7B%5Cfrac%7B4%7D%7B3%7D%5Cpi%201150000%5E3%7D%5C%5C%5CRightarrow%20%5Crho%3D3.122%5Ctimes%2010%5E%7B14%7D%5C%20g%2Fcm%5E3)
∴ Density of neutron star is 3.122×10¹⁴ g/cm³
The water behind a hydroelectric dam stores gravitational potential energy since it is at a higher level than the water on the other side of the dam. As the water falls, this potential energy is converted into kinetic energy, which turns turbines to generate electricity. Often, the water comes from behind a dam built across a river valley. The water high up behind the dam contains gravitational potential energy . This is transferred to kinetic energy as the water rushes down through tubes inside the dam. The moving water drives electrical generators , which may be built inside the dam.
Answer:
4.5 m/s
Explanation:
so, you just divide the displacement or distance (202.5) by the time given (45)
202.5 ÷ 45 =4.5