Calculate the total mechanical energy of a 2 kg duck flying at 5 m/s, at a height of 10 meters above the ground. Use g = 10 m/s?
A.) 25J
B.) 45 J
C.) 205 J
D.) 225J

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.