Which of the following equations are dimensionally correct?
v_f=v_i+ax
y=(2m)cos⁡(kx), where k=2m^(-1)

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

wavelength divides in half and speed stays the same.