Who plays among us?????
2 answers:
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Answer:
The frictional force is
Explanation:
From the question we are told that
The coefficient of kinetic force is μk = 0.35
The normal force felt by the puck is
Generally the frictional force that acts on the puck is mathematically represented as
=>
=>
Answer:
4.1 m
Explanation:
10 kW = 10000 W
20mi/h = 20*1.6 km/mi = 32 km/h = 32 * 1000 (m/km) *(1/3600) hr/s = 8.89 m/s
The power yielded by the wind turbine can be calculated using the following formula
where is the air density, v = 8.89 m/s is the wind speed, A is the swept area and
is the efficiency
The swept area is a circle with radius r being the blade length