advantages
1.Less flooding
2.Less erosion
3.Return of natural ecosystems
disadvantages
1. People go hungry
2. People don't get the water they want
3. People don't get the land they want for homes
Answer: 
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed=
Joules
m= mass of copper = 454 g
c = specific heat capacity = 
Initial temperature of the copper = 
= 23.0°C
Final temperature of the water = 
= ?
Change in temperature ,
Putting in the values, we get:
The final temperature of copper will be
Answer:
P = 79993.43245
Explanation:
Được -
Vị trí tâm ống dẫn dưới đường thuỷ ngân h1 = 820 mm
Chênh lệch chiều cao của cột thủy ngân h2 = 880mm
Tỷ trọng của thủy ngân = 13,5951 g / cm3
P = mật độ * gia tốc do trọng lực a * h
Thay thế các giá trị đã cho, chúng ta nhận được -
P = 13,5951 g / cm3 * 980,665 cm / s2 * (88-82) cm
P = 79993.43245
Answer:
The supersonic jet has a greater acceleration
Answer:
True
Explanation:
The radio transmitter generates the radio frequency
As you move away from the radio transmitter, the radio frequency decreases
The relationship between frequency and wavelength is inverse
As the frequency decreases the wavelength of the radio signal increases
