(20 Points) PLS HELP ASAP I WILL GIVE BRAINLIEST A prototype for an electric car has a mass of 1 400 kg. It converts electrical energy into kinetic energy with an efficiency of 90%. The approximate amount of energy its battery expends to accelerate the car from rest to 25m/s is what?

A2 µc charge q1 and a 2 µc charge q2 are 0.3 m from the x-axis. a 4 µc charge q3 is 0.4 m from the y-axis. the distances d13 and d23 are 0.5 m. find the magnitude and direction of the resulting vector r. round your answer to the nearest tenth.

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather