Phy-122 Scalars and Vectors 02
5-
A force of 6N is acting along x-axis. Its y-component is
6 Zero
c) 12N
a) 6N
d) 3N
6- Cos60°has the value:
a) 1b)0.8666) 0.5
d) A Cote
a) A Sino
d) 0.707
7. If a vector A makes an angle with x-axis, its X-componen
b) A tan
O A Coso
3. If two vectors make an angle of90°with each other, their scal
10
b) 1
c) -1
d) 2
-
The scalar product of two vectors A and B at an angle 8
is
B Sind © AB Coso d) AB ta
b)​

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

This is really important 1.which of the following prefixes represents the largest value? (2 points)gigahectorkilomilli2.which of the following types of graphs is best for plotting the mean, median, and mode of data? (2 points)bar graphbox-and-whiskercircle graphstem-and-leaf

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?