4. At the top of a hill, a skater has a gravitational potential energy of 125J. What

is the total kinetic energy at the bottom of the hill of the skater if energy is

conserved?

Based on the daughter in figure 1 is mixture see a homogeneous or heterogeneous mixture explain

A skier descends a mountain at an angle of 35.0º to the horizontal. If the mountain is 235 m long, what are the horizontal and vertical components of the skier's displacement?

What happens to the angle of the wave if it hits the Perspex at 90 degrees?

In which substance would the particles be moving the fastest? A. dry ice B. iced tea C. warm water D. carbon dioxide gas

How does sound travel from your vocal cords to someone's ear?

In a polar covalent bond

Lindsay is late to class and is running down the hallway at a speed of 2 m/s the length of the hallway is 150 meters. How long will it take her to run down the hallway?

Which of the following is evidence that groundwater causes erosion and deposition?

Changing the direction of current will or will not affect the strength of an electromagnet

A swimming pool has the dimensions of 10 meters, 5 meters, and 1 meter. What is the pool's volume? 50 m 50 m3 50 m2 25 m3