Gravity pulls objects down to the earth
        
             
        
        
        
-2/5 = 11k - k
-2/5 = 10k
-2/5/10 = k
-2/5 * 10 = k
-2/50 = k
k = -1/25.
-1/25 - 2/5 = 11k is true.
        
             
        
        
        
Answer:
a)  W = 46.8 J  and b)   v = 3.84 m/s
Explanation:
The energy work theorem states that the work done on the system is equal to the variation of the kinetic energy
     W = ΔK =  -K₀
 -K₀
a) work is the scalar product of force by distance
     W = F . d
 Bold indicates vectors. In this case the dog applies a force in the direction of the displacement, so the angle between the force and the displacement is zero, therefore, the scalar product is reduced to the ordinary product.
     W = F d cos θ
     W = 39.0 1.20 cos 0
     W = 46.8 J
b) zero initial kinetic language because the package is stopped
     W - =
 =  -K₀
 -K₀
     W - fr d= ½ m v² - 0
     W - μ N d = ½ m v
    on the horizontal surface using Newton's second law
      N-W = 0
      N = W = mg
  
      W - μ mg d = ½ m v
     v² = (W -μ mg d) 2/m  
     v = √(W -μ mg d) 2/m 
     v = √[(46.8 -  0.30 4.30 9.8 1.20) 2/4.3
]
     v = √(31.63 2/4.3)
     v = 3.84 m/s
 
        
             
        
        
        
I think it would be yes because the drum is submerged in water and the water would slow the sound waves, making the sound softer. Right?
        
             
        
        
        
Answer:
<h2>33.53m/s</h2>
Explanation:
Given the maximum speed limit on interstate 10 as 75 miles per hour, to get the speed in meter per seconds, we need to convert the given speed to meter per seconds.
Using the conversion 1 mile = 1609.34m and 1 hour = 3600 seconds
75 miles perhour = 75miles/1 hour
 75miles/1 hour (in m/s) = 75miles*1609.34m* 1 hour/1mile * 1 hour * 3600s * 
= 75 *1609.34m* 1 /1 * 1 * 3600s 
= 120,700.5m/3600s
= 33.53m/s
<em>Hence the maximum speed limit on interstate 10 in metre per seconds is 33.53m/s</em>