The wavelength is 2m.
Hence, Option c) 2m is the correct answer
Given that;
Frequency; 
Speed; 
Wavelength; 
using the expression for the relations between wavelength, frequency and speed of wave:
Where 
is wavelength, f is frequency and v is speed.
We substitute our given values into the equation
The wavelength is 2m.
Hence, Option c) 2m is the correct answer.
To learn more about wavelength, click here: brainly.com/question/1347107
The correct answer is letter C: They argue with one another and collect more evidence to support their point of view.
Explanation:
Kinetic energy of an object is given by :
Where
m is mass and v is velocity of the object
A. Mass, m = 300 kg.
Speed, v = 60 km/h = 16.67 m/s
B. Mass, m = 1100 kg.
Speed, v = 60 km/h = 16.67 m/s
C. Mass, m = 900 kg.
Speed, v = 80 km/h = 22.22 m/s
D. Mass, m = 2000 kg.
Speed, v = 50 km/h = 13.88 m/s
The kinetic energy in case C is maximum.
That's false. When the forces acting on an object are balanced,
their effect on the object is the same as the effect of no forces at all.
Then the object continues moving in a straight line at a constant speed.
Answer:
9800 N
Explanation:
applying,
W = Fd.................. Equation 1
Where W = work done by the engine, F = Force exterted to lift the beam, d = distance.
make F the subject of the equation
F = W/d............... Equation 2
From the question,
Given: W = 1421000 J, d = 145 meters.
Substitute these values into equation 2
F = 1421000/145
F = 9800 N
