Answer:
5070
Explanation:
add them up and then you get <em>your</em><em> </em><em>answers</em><em> </em>
 
        
                    
             
        
        
        
If the girl is also near the source of the sound, two alike sets of sounds will be heard.
        
                    
             
        
        
        
<u><em>The  question doesn't provide enough data to be solved, but I'm assuming some magnitudes to help you to solve your own problem</em></u>
Answer:
<em>The maximum height is 0.10 meters</em>
Explanation:
<u>Energy Transformation</u>
It's referred to as the change of one energy from one form to another or others. If we compress a spring and then release it with an object being launched on top of it, all the spring (elastic) potential energy is transformed into kinetic and gravitational energies. When the object stops in the air, all the initial energy is now gravitational potential energy.
If a spring of constant K is compressed a distance x, its potential energy is

When the launched object (mass m) reaches its max height h, all that energy is now gravitational, which is computed as

We have then,


Solving for h

We have little data to work on the problem, so we'll assume some values to answer the question and help to solve the problem at hand
Let's say: x=0.2 m (given), K=100 N/m, m=2 kg
Computing the maximum height


The maximum height is 0.10 meters
 
        
             
        
        
        
Answer:
The tangential speed at Livermore is approximately 284.001 meters per second.
Explanation:
Let suppose that the Earth rotates at constant speed, the tangential speed ( ), measured in meters per second, at Livermore (37.6819º N, 121º W) is determined by the following expression:
), measured in meters per second, at Livermore (37.6819º N, 121º W) is determined by the following expression:
 (1)
 (1)
Where:
 - Rotation time, measured in seconds.
 - Rotation time, measured in seconds.
 - Radius of the Earth, measured in meters.
 - Radius of the Earth, measured in meters. 
 - Latitude of the city above the Equator, measured in sexagesimal degrees.
 - Latitude of the city above the Equator, measured in sexagesimal degrees.
If we know that  ,
,  and
 and  , then the tangential speed at Livermore is:
, then the tangential speed at Livermore is:


The tangential speed at Livermore is approximately 284.001 meters per second.
 
        
             
        
        
        
At what angle torque is half of max