Abasic observation of a star is how bright it appears. this brightness is known as the star's
a. luminosity.
b. absent magnitude.
c. apparent magnitude.
d. absolute magnitude.

If the textbook weighs 19.6 newtons on venus, what is the strength of gravity on venus?

Pls ! what are 3 examples of acceleration that doesn’t involve a change in speed ?

The water flowing over niagara falls drops a distance of 50 m. if all the gravitational potential energy is converted to thermal energy, by what temperature does the water rise? the specific heat of water is 4186 j/kg ∙ k. a)0.42 c° b)0.37 c° c)0.12 c° d)0.10 c°