A Maglev train is powered by magnetism and electricity. A student wants to build a model of this train. Which test will best determine if the model train works? Attach the train to an electric fan
Connect the train to a solar panel
Connect the train to an electromagnet
Connect the train to a rocket

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

Need in all of themmm only answer if you know plsssss

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.