Abox that has a mass of 80 kg slides down a ramp with a 30 degree angle. the free-body diagram shows the forces acting on the box. ignoring friction and air resistance, what is the acceleration of the box, to the nearest tenth?
-0.5 m/s2
-4.9 m/s2
-8.5 m/s2
-9.8 m/s2

The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical