An ideal spring, with spring constant k, is attached to a particle of charge q and mass m in such a way that it can only move along the z-axis. the spring's equilibrium is used to set i= 0. the system is then put in an electric field e= e . 1. where would the new equilibrium be? 2. if the system was at rest and equilibrium initially, what is the maximum speed of the system after the electric field is turned on? 3. under the same conditions what is the maximum distance from the origin the mass can reach?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue