Farah and Athena were attempting to push Kieran on the scooter with enough force so that Kieran would run into Mr. Collins. They figured out they needed a 50 N force to run the scooter into Mr. Collins, Farah and Athena were both applying
force from the left, Farah applying a 20 N force and Athena pushing with a force of 15 N. Were they able to get Kieran to
run into Mr. Collins? How can they get it to hit him?

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.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.