Answer:
Mass of body A, m
1
=m
Mass of body B, m
2
=m
Height h
1
=h
Height h
2
=2h
Acceleration due to gravity, g
1
=g
Acceleration due to gravity, g
2
=g
PotentialEnergy(P.E
2
)
PotentialEnergy(P.E
1
)
=?
P.E=mgh
⇒P.Eαh
(∴ 'm' and 'g' are constants)
⇒
P.E
2
P.E
1
=
h
2
h
1
⇒
P.E
2
P.E
1
=
2h
h
⇒
P.E
2
P.E
1
=
2
1
Therefore, the ratio of potential energy is of the two bodies is 1 : 2.
1) 4.8
2) 5.6
3)0.8
.............………
Hi friend
---------------
Your answer
---------------------
★ Pitch => It is the shrillness or coarseness of the sound.
Higher frequency = Shrill sound
Lower frequency = coarse sound
So, Final answer -
A. Frequency of sound waves
HOPE IT HELPS
Answer:
- Distance is a scalar quantity, defined as the total amount of space covered by an object while moving between the final position and the initial position. Therefore, it depends on the path the object has taken: the distance will be minimum if the object has travelled in a straight line, while it will be larger if the object has taken a non-straight path.
- Displacement is a vector quantity, whose magnitude is equal to the distance (measured in a straight line) between the final position and the initial position of the object. Therefore, the displacement does NOT depend on the path taken, but only on the initial and final point of the motion.
If the object has travelled in a straight path, then the displacement is equal to the distance. In all other cases, the distance is always larger than the displacement.
A particular case is when an object travel in a circular motion. Assuming the object completes one full circle, we have:
- The distance is the circumference of the circle
- The displacement is zero, because the final point corresponds to the initial point
Answer:
57.1 km/hr
Explanation:
To find the average speed you take the total distance divided by the total elapsed time.
So, the total distance is 140 + 60 = 200
the total elapsed time is found by taking 140/70=2 and 60/40=1.5
2+1.5=3.5
The plug the numbers into the equation,
200/3.5=57.1
