For numbers 7 to 10, refer to the graph 30 60
I
A
Distance (km)
% % % 8
D
10
0
09.00
10:00
11.00
12.00
13.00
14:00
7. What is the speed of the object at A?
A. 30 km/hr
B. 15 km/hr
C 2.73 km/hr
DO km/hr

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons