The answer is 7. A coefficient is a number paired with a variable. Because T is paired with 7, it is therefore the coefficient.
The base unit of time in the metric and SI system is the second.
Newtons first law states that an object will remain still or in straight line. Until acted upon some force!
Answer:
The speed is the same as long as the reflection is regular.
Explanation:
This is because in regular reflection, the angle of incidence is equal to the angle of reflection in accordance with the second law of reflection.
Since speed of light depends on the angle of the light ray it makes with the reflecting surface, the speed is the same
Answer:
Explanation:
given,
wavelength, λ = 50 cm
speed, v = 4 m/s
Amplitude, A = 5 cm
general equation of the wave along x- axis
sign is positive when wave is traveling in negative direction
now,
inserting all the values
Hence, the y-equation of wave is equal to
