- L=8m
- B=4m
- H=300cm=3m
In Hooke’s law, what does the x represent?
2 answers:
Answer:
x is the displacement of spring
Explanation:
The Hooke's law gives the force acting on the spring when it is compressed or stretched. The mathematical expression for force is given by :
Where
k is the spring constant of and it shows the stiffness of spring.
x shows the displacement of spring when it is stretched or compressed from equilibrium position and it acts in opposite direction.
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Answer:
1.3 x 10⁻⁴ m
Explanation:
= wavelength of the light = 450 nm = 450 x 10⁻⁹ m
n = order of the bright fringe = 1
θ = angle = 0.2°
d = separation between the slits
For bright fringe, Using the equation
d Sinθ = n
Inserting the values
d Sin0.2° = (1) (450 x 10⁻⁹)
d (0.003491) = (450 x 10⁻⁹)
d = 1.3 x 10⁻⁴ m
Answer:
1.57 s
Explanation:
Since the motion of the hammer is a uniformly accelerated motion, the distance covered by the hammer in a time t is
Where, in this case
S = 2.0 m is the distance covered
a = 1.62 m/s^2 is the acceleration due to gravity
t is the time taken
Re-arranging the equation, we can find the time the hammer takes: