The speed of Nancy who ran a distance of 5 km in 30 minutes is 10000 meters(m) per hour(h).
 
<h3>What is the rate of speed?</h3>
The rate of speed is the rate at which the total distance is travelled in the time taken. Rate of speed can be given as,

Here, (d) is the distance travelled by the object and (t) is the time taken but the object to cover that distance.
Nancy ran a distance of 5 km in 30 minutes. There are 60 minutes in one hour. Thus, the time in hour for which Nancy ran is,
 
 
The meters in 5 kilometers is,

She ran 5000 kilometers in 0.5 hours. Thus, the speed of her is,

Thus, the speed of Nancy who ran a distance of 5 km in 30 minutes is 10000 meters(m) per hour(h).
Learn more about the rate of speed here:
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Answer:
Por lo tanto, la presión del ozono es:
 
  
Explanation:
Podemos usar la ecuacion de los gases ideales;
 (1)
 (1)
Tenemos:
El volumen V = 224 dm³ = 224 L
La temperatura T = 51.09 C = 324.09 K
La masa es m = 4.561 kg
Lo necesitamos ahora es calvular n que es el numero de moles;
recordemos que el peso molecular del ozono M = 48 g/mol.

Finalmente, usando la ecuacion 1 despejamos la presion P
 
 
 
  
Por lo tanto, la presion del ozono es:
 
  
Espero te haya ayudado!
 
        
             
        
        
        
Answer:
• As heat is applied to one end of this material, atoms in the hotter region gain vibràtory energy at a maximum amplitude. They transfer it on to their neighboring atoms and heat is transfered along this material in form of vibràtory energy.
Explanation:

 
        
                    
             
        
        
        
Answer: 4m
Explanation:
Since the angle of incidence of a plane mirror can be anything from 0 to 90°
Assuming that the place is a perfectly square 4×4m room
The incident ray would be 45° for the choir(object) at a 4m distance, this is still within the range of values.
We do not forget also, that the focal length of a plane mirror is infinity, the organist would in fact see farther than 4m if need be. And wider
 
        
             
        
        
        
Answer:
Explanation:
a). Find the graph attached for the motion.
b). If a shopper walk 5.4 m westwards then 7.8 m eastwards,
    Distance traveled by the shopper = Distance traveled in eastwards + Distance traveled westwards
                                                             = 5.4 + 7.8 
                                                             = 13.2 m
c). Displacement of the shopper = Distance walked westwards - Distance traveled eastwards 
                                                       = 5.4 - 7.8
                                                       = -2.4 m
Therefore, magnitude of the displacement of the shopper is = 2.4 m
And the direction of the displacement is eastwards.