Answer is A A velocity vs. time graph for an object is shown.
Which parts of the graph represents the object
moving at a constant, positive acceleration?
Velocity vs Time
O W and X
25
0 X and Y
20
Y
Y and Z
15
W and Z
Velocity (m/s)
10
Z
W
5
0
0
1
2.
3 4
5
Time (s)

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j

How many atoms of nitrogen are in the chemical formula ni(w on

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.