What is the horizontal acceleration of a ball that is launched horizontally with a velocity of 5.6 m/s?

a.–9.8 m/s2
b.0 m/s2
c.5.6 m/s2
d.9.8 m/s2

An unknown substance has a melting point of 1064 ∘c, is insoluble in water, conducts electricity as a solid, and is hard. given these properties, which of the following are possible identities for the unknown substance? check all that apply. view available hint(s) check all that apply. sio2 f2 au kbr

Avoltaic cell converts chemical energy to

Which of the following is a measure of the amount of light a star directly emits?               a.  luminosity    b.  intensity    c.  wavelength    d.  brightness