The speed of a river boat is 40 km/h and the rate of flow of the river is 8 km/h. Moving along the same direction as the flow of

the river, the boat traveled 240 km. Calculate the distance the

boat could travel going against the stream in the same time

period.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v