Find the center of the mass of a thin plate of constant density delta covering the region bounded by the x-axis and the curve y equals three halves bold cos x , negative startfraction pi over 3 endfraction less than or equals x less than or equals startfraction pi over 3 endfraction .

The dissociation energy of a molecule is the energy required tobreak apart the molecule into its separate atoms. the dissociationenergy for a particular molecule is 5.48 x 10-18 j.suppose that this energy is provided by a single photon. determinethe (a) wavelength and (b) frequency of the photon

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.