A scientist collected data using four different instruments. She organized her results in a table, with the measurements from each instrument in a separate
column. The actual value is 5.5. Which column shows both high precision and
high accuracy?
1
2
3
4
5.4
4.9 8.9 3.2
5.7 6.2 4.1 2.9
5.6
7.3 4.3 3.1
5.7
5.1 9.2 3.1
5.6 3.7 3.3 2.8

Acar travels 40m in 8 seconds find the car speed

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.