Answer:
270Joues
Explanation:
Step one:
given data
Force F= 45N
distance moved d= 6m
Required
The work done in moving the block 6m
Step two:
We know that the expression for the work done is
WD= force* distance
WD= 45*6
WD=270Joues
When you touch a doorknob (or something else made of metal), which has a positive charge with few electrons, the extra electrons want to jump from you to the knob. That tiny shock you feel is a result of the quick movement of these electrons.
Answer:
The speed of the second toy car after collision is 
Explanation:
Let movement to the right be positive and the opposite negative
From the question we are told that
The mass of the car is 
The initial velocity of the car is 
The mass of the second toy car 
The initial velocity of the car is 
The final velocity of the first car is 
From law of momentum conservation we have that

substituting values


