A box of mass 10kg is pulled up by a string. If the acceleration of the box is 20m/s^2, what is the tension in the string?

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

What should the power status of a circuit be when measuring resistance with an ohmmeter?

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75