Calculate the Force applied on a body of mass 100 KG Moving with the velocity 20 m/s so that it can be brought into rest in five seconds also calculate the distance covered Plz reply fast

What energy transformations occur each time the skateboarder rolls up the ramp?

When a pendulum is held high and taut and then is released, the pendulum begins to swing. what’s the correct order of the energy transformations in this example? (pe stands for potential energy.)

How can you improve the percent yield of copper in this lab? check all possible strategies that will you do so. measure reactants precisely. stir to the reaction take place. chill the reactants before combining them. wait patiently until the reaction completes. make sure to recover as much copper as possible.