A 1.10kg block is attached to a spring with spring constant 18 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 40cm/s .What is the block's speed at the point where x = 0.45 A?

The velocity is  

Explanation:

From the question we are told that

   The  mass is  

   The  spring constant is  

   The  speed is

    The  position considered is  x =  0.45 A  

Here A is the amplitude which is mathematically represented as

=>    

=>    

So    

=>    

Generally the speed at  x  is mathematically represented as

=>    

=>    

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.