Auniform piece of sheet steel is shaped as in the figure below. (both axes are marked in increments of 2). compute the x and y coordinates of the center of mass of the piece.

If the area of a square has increased by a factor of 16, by how much has each side increased?

What is the speed vfinal of the electron when it is 10.0 cm from charge 1?

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.