Answer:
chris gets 960 and molly gets 1440
Explanation:
add the ratio up and divide
2+3=5
2400/5=480
480x2=960
480x3=1440
960+1440= 2400
 
        
             
        
        
        
Yes bc math, numbers and more
        
             
        
        
        
Steel paper clip because it can be moved by the magnet and it is lighter than the iron nail
        
             
        
        
        
Answer:
4 hertz
Explanation:
The defination of freqyency = the total no of cycle made by a wave in one second .
so,
cycle or vibrations=60
tame taken = 15
now,
 frequency = no. of cycle / time taken
 = 60/15
 =4 hertz
hence, the its frequency = 4hertz 
 
        
             
        
        
        
Answer:
V = 20.5 m/s
Explanation:
Given,
The mass of the cart, m = 6 Kg
The initial speed of the cart, u = 4 m/s
The acceleration of the cart, a = 0.5 m/s²
The time interval of the cart, t = 30 s
The final velocity of the cart is given by the first equation of motion
                               v = u + at
                                   = 4 + (0.5 x 30)
                                   = 19 m/s
Hence the final velocity of cart at 30 seconds is, v = 19 m/s
The speed of the cart at the end of  3 seconds
                                     V = 19 + (0.5 x 3)
                                        = 20.5 m/s
Hence, the final velocity of the cart at the end of this 3.0 second interval is, V = 20.5 m/s