Answer:
Explanation:
U = Energy = 76 J
x = Displacement of spring = 0.17 m
k = Spring constant
Energy is given by
Force is given by
The magnitude of force must you apply to hold the platform is .
Now
Additional energy
Scientists think the earliest version of the eye was formed in unicellular organisms, who had something called 'eyespots'. These eyespots were made up of patches of photoreceptor proteins that were sensitive to light. ... Over time, the unicellular creature would evolve, and its eyespot evolved along with it.
Answer:
The critical angle is
Explanation:
Snell's law is mathematically represented as
Where is the refractive index of medium 1
is the refractive index of medium 2
Now substituting for and ac which denotes the critical angle for
Making ac the subject
From the question we are told that
The is implies that ac < 90
since
Critical angle is that angle of incidence that result to a 90 degree angle of refraction
The SI / Metric unit of force is the ' Newton '.
1 newton is the force that accelerates 1 kg of mass at the rate of 1 m/s² .