The first opiton is the answer A)<span>Rahul’s weight
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Answer:
The factor of the diameter is 0.95.
Explanation:
Given that,
Power of old light bulb = 54.3 W
Power = 60 W
We know that,
The resistance is inversely proportional to the diameter.

The power is inversely proportional to the resistance.


We need to calculate the factor of the diameter of the filament reduced
Using relation of power and diameter

Put the value into the formula



Hence, The factor of the diameter is 0.95.
 
        
                    
             
        
        
        
Answer:
when you are pushing the pedal you are causing the pedal to move done and then you will move 100cm
Explanation:
10 cm= 100 cm moved so when you move you will move because you are timeing  the 10 by 100 to get the spped 
 
        
             
        
        
        
Answer:
the shooting angle ia 18.4º
Explanation:
For resolution of this exercise we use projectile launch expressions, let's see the scope
       R = Vo² sin (2θ) / g
       sin 2θ = g R / Vo²
       sin 2θ = 9.8 75/35²
       2θ = sin⁻¹ (0.6)
       θ = 18.4º
To know how for the arrow the tree branch we calculate the height of the arrow at this point
        X2 = 75/2 = 37.5 m
We calculate the time to reach this point since the speed is constant on the X axis
        X = Vox t
        t2 = X2 / Vox = X2 / (Vo cosθ)
         t2 = 37.5 / (35 cos 18.4)
         t2 = 1.13 s
With this time we calculate the height at this point
         Y = Voy t - ½ g t²
         Y = 35 sin 18.4   1.13 - ½ 9.8 1,13²
         Y = 6.23 m
With the height of the branch is 3.5 m and the arrow passes to 6.23, it passes over the branch