Out in the woods filming a documentary about timber rattlesnakes, your video camera runs out of batteries. The camera draws 0.25 A of current, and has an overall resistance of 72 ohms. What voltage supply does this camera need - well your last 6 pack of 9V batteries do the job?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums