What is the wavenumber of the stretching vibrational mode for the CO molecule, given that the force constant of the bond is 680 N*m-1? Is this mode IR-active? (Hint: μ should be in kg)

If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?

Idon’t quite understand this problem

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it