Answer:
The vertical distance that the ski jumper fell is 417.45 m.
Explanation:
Given;
initial horizontal velocity of the jumper, = 26 m/s
horizontal distance of the jumper, dx = 240 m
The time of the motion is given by;
dx = Vₓt
t = dx / Vₓ
t = 240 / 26
t = 9.23 s
The vertical distance traveled by the diver is given by;
initial vertical velocity, , = 0
Therefore, the vertical distance that the ski jumper fell is 417.45 m.
Answer:
0.00095%
Explanation:
Mass of coal needed every day = Mass needed every hour × 24
Thermal energy released per hour = Mass × Heat of combustion
Power released per second = Energy / 3600 seconds
Thermal efficiency = (Electrical power / Mechanical power) × 100
Thermal efficiency of the plant is 0.00095%
1: absorbed
2: reflected
3: i forgot the last one