Answer/ Explanation
the loop has no force and the wires cancel each other but the wire on the loop has a force
The segment a get the same force for both but in the loop segment b get an opposite force so the net force on the loop is smaller
The loop wire has forces that all cancel out while the other straight wire doesn't.
Answer:
A. 64.0 J
Explanation:
Given parameters:
Spring constant = 800N/m
Extension = 0.4m
Unknown:
Work done = ?
Solution:
The work done in a string is given as:
Work done =
x 800 x 0.4² = 64J
Anticyclone is the high pressure center of dry air
The SI unit for molar mass is grams/mole.
Given:
u(intial velocity)=0
a(acceleration)=9.8 m/s^2(as it is a free falling object acceleration is due to gravity)
t= 3 seconds
In order to find the final velocity v
We know that
v= u+at
Where v is the final velocity measured in m/s
u is the initial velocity measured in m/s
a is the acceleration measured in m/s^2.
t is the time taken to fall down measured in seconds
Now substituting the given values in the above formula we get
v=u +at
v=0+(9.8 x 3)
v=29.4m/s
Thus the final velocity is 29.4 m/s.