An unstable particle produced in an accelerator experiment travels at constant velocity, covering 1.00 m in 3.44 ns in the lab frame before changing ("decaying") into other particles. in the rest frame of the particle determine how long it lived before decaying?

Explanation:

= Distance covered = 1 m

= Time taken = 3.44 ns

c = Speed of light =

Velocity would be

Time in rest frame is given by

It lived before decaying

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.