A 96.0-kg student climbs up a ladder to the roof of a building. The gravitational potential energy of the student at a certain point is 3.35 × 103 J. The student is above the ground. URGENT

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

so easy. just google the electromagnetic waves and it’ll pop up.