Please help me solve this question; a) Calculate the moment of the force applied to the pedal
b) The cassette transfers this moment to the chain, creating tension in it. Using your answer to part (a), calculate the tension (force) in the chain

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 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.

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little