Answer:
 F = 2,894 N
Explanation:
For this exercise let's use Newton's second law
       F = m a
The acceleration is centripetal
      a = v² / r
Angular and linear variables are related.
      v = w r
Let's replace
      F = m w² r
The radius r and the length of the rope is related
     cos is = r / L
     r = L cos tea
Let's replace
     F = m w² L cos θ
Let's reduce the magnitudes to the SI system
      m = 101.7 g (1 kg / 1000g) = 0.1017 kg
       θ = 5 rev (2π rad / rev) = 31,416 rad
      w =  θ / t
      w = 31.416 / 5.1
      w = 6.16 rad / s
      F = 0.1017 6.16² 0.75 cos  θ
      F = 2,894 cos  θ
The maximum value of F is for  θ equal to zero
      F = 2,894 N
 
        
             
        
        
        
Answer:
1 cm⁻¹ =1.44K  1 ev = 1.16 10⁴ K
Explanation:
The relationship between temperature and thermal energy is
      E = K T
The relationship of the speed of light
     c =λ f = f / ν          1/λ= ν
The Planck equation is
           E = h f
Let's start the transformations
 
      c = f λ = f / ν        
      f = c ν
      E = h f
      E = h c ν
      E = KT
      h c ν = K T
      T = h c ν  / K =( h c / K) ν
 
Let's replace the constants
      h = 6.63 10⁻³⁴ J s
      c = 3 10⁸ m / s
      K = 1.38  10⁻²³ J / K
  
      v = 1 cm-1 (100 cm / 1 m) = 10² m-1
     
      T = (6.63 10⁻³⁴ 3. 10⁸ / 1.38 10⁻²³) 1 10²
      A = h c / K = 1,441 10⁻²
      T =  1.44K
      ν = 103 cm⁻¹ = 103 10² m
      T = (6.63 10⁻³⁴ 3. 10⁸ / 1.38 10⁻²³) 103 10²
      T = 148K
1 Rydberg = 1.097 10 7 m
As we saw at the beginning the λ=1 / v
      T = (h c / K) 1 /λ
      T = 1,441 10⁻²  1 / 1,097 10⁷
      T = 1.3 10⁻⁹ K
     E = 1Ev (1.6 10⁻¹⁹ J /1 eV) = 1.6 10⁻¹⁹ J
     E = KT
     T = E/K
     T = 1.6 10⁻¹⁹ /1.38 10⁻²³
     T = 1.16 10⁴ K
 
        
             
        
        
        
Answer:
the Arrow X shows the direction of amplitude
Explanation:
As the amplitude is the maximum displacement of a wave from the mean position
 
        
             
        
        
        
Answer:
<h2>9.92 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 3.2 × 3.1
We have the final answer as
<h3>9.92 N</h3>
Hope this helps you