Frogs need water to lay their eggs. it has not rained for many months. the lake is getting smaller. billy does not see many tadpoles at the lake because a) the frogs have laid fewer eggs. b) the lake is overcrowded with fish. c) the fish ate all of the frog eggs. d) the frog eggs won't hatch in hot weather.

Consider a resistor with color code “orange blue brown gold” and a measured value of 370 ω. determine the following: nominal value, tolerance, % error, and the probability of another resistor from the same manufacturing batch having a value closer to nominal than this one. use matlab or excel to evaluate the erf function.

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?