The answer is D. To the left with speed 2v
Answer:


Explanation:
Given :
Force with which dog pulls the pillow = 5 N
Angle of force to the horizontal = 37°
To find the
and
components of force.
Solution:
For a force
making an angle
with the horizontal, the
1)
component or the horizontal component is given by:

2)
component or the vertical component is given by:

Plugging the know values to find
and
components of force applied by the dog on pillow
1) 
∴
(Answer)
2) 
∴
(Answer)
Answer:
Capacitive reactance of the capacitor is 68 ohms
Explanation:
It is given that,
Capacitance, 
Frequency, 
Capacitive reactance is given by :



or

So, the capacitive reactance of the capacitor is 68 ohms. Hence, this is the required solution.
Power is measured in watts
Answer:
Ans is (B) driving a rock from a building