A block initially at rest is allowed to slide down a frictionless ramp and attains a speed v at the bottom. to achieve a speed of 1.8v at the bottom, how many times as high must a new ramp be?

Which objects have both potential and kinetic energy? Check all that apply. a boulder resting on top of a mountain a sky diver who is midway through his descent to the ground a falling raindrop a parked car a roller coaster car halfway down the

How are all paths that have a displacement of zero similar?

Keeping careful track of when air filters have been changed in guest room heating and cooling units is an example of which maintenance activity? Planning Organizing Recording Implementing

An 1647 w toaster, a 1592 w electric frying pan, and a 81 w lamp are plugged into the same outlet in a 120-v circuit. (the three devices are in parallel when plugged into the same socket.). what current is drawn by the frying pan

When a student combed his dry hair for a long time, his hair began to stand up. Which of these has Most Likely happend?

Who was the scientist that discovered Pluto wasnt a planet

Astronauts appear weightless while working in the International Space Station because A) they are in a state of free fall. B) there isn't any gravity in outer space. C) they have very little mass when in outer space.

The distance between two consecutive crests is 2.5 meters. Which characteristics of the wave does this distance represent?

Who first landed on the moon?

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature of the medium the type of wave the type of medium