POCT in the ED â¢ Faster does not always lead to better outcome â¢ Lab tests are rarely the rate limiting factor in ED disposition â¢ Process analysis is the key understanding and improving patient throughput in the ED â¢ Test menu selection is a critical component of the potential application of POCT â¢ Match available tests to disposition decisions
Gravity decreases with altitude as one rises above the Earth's surface because greater altitude means greater distance from the Earth's centre. All other things being equal, an increase in altitude from sea level to 9,000 metres (30,000 ft) causes a weight decrease of about 0.29%.
Specifically, gravity increases a falling object's velocity by 9.8 meters per second (m/s) with every passing second. (Whereas velocity is measured in m/s, acceleration is measured in meters per second squared, or m/s 2 .) How does this constant acceleration affect the distance that an object travels over time?In this experiment you will roll a marble down a ramp to find out. Mark the distance traveled on the ramp each time. 2  Using a longer ramp, how does gravity appear to affect the velocity and acceleration of a marble as it rolls downhill? 3  Extra: Try repeating this activity with different balls, such as a rubber ball, large metal ball bearing, ping pong ball, etc.