Answer:
Explanation:
a ) Let breadth be L , then length will be 1.5 L
Since it is a meter scale , the least count is 1 m.m. So
maximum possible error in a measurement is 1 mm.
In both the measurement of length and breadth , absolute
uncertainty will be 1mm.
Hence there is no difference in absolute uncertainty of their measurement.
b ) percent uncertainty in the measurement of length

= 1 / 15L%
percent uncertainty in the measurement of breadth

1 / 10L%
In breadth it will be higher by
( 1/10L - 1/15L)/ 1/10L
= 1/3
c ) Uncertainty in the measurement of R= 1 %
Area A = π R²
ΔA/A X100 = 2 X ΔR/R X 100
Percentage uncertainty in A = 2 X percentage uncertainty in R
= 2 X 1
=2 %
Therefore percentage accuracy in the calculation of area
= 2 %.
Answer:
0.46786 W
Explanation:
The solution is in the attached file below
Velocity is a vector, which includes both magnitude and direction. Negative velocity means that B is travelling in an opposite direction of A.
The answer is B
Using the equation, F=MA, we can determine that...
(125kg) (3m/s^2) = 375N
The pot spends T = 0.185s going up and 0.185s going down past the window.
The average speed passing by the window is 2.20 m/0.185s = 11.89 m/s.
During passage, the pot increases speed by T*g = 0.185*9.81 = 1.815 m/s
The speed is therefore 12.80 m/s at the bottom of the window and 10.98 m/s at the top of the window.
The 10.98 m/s speed at the top of the window allows it to rise another 10.98^2/(2g)= 6.15 m past the top of the window