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Q 1/7
Score 0
A rubber band is stretched from an original length of 3m to a new length of 3.05m. What is the strain?
300
0.027
0.037
0.017
0.047
Q 2/7
Score 0
A rope with radius 4mm is holding the weight of a climber mass 60kg. What is the strain on the rope?
300
$1.17\times10^{7}$pa
$4.17\times10^{7}$pa
$3.17\times10^{7}$pa
$2.17\times10^{7}$pa
7 questions
Q.
A rubber band is stretched from an original length of 3m to a new length of 3.05m. What is the strain?
1
300 sec
Q.
A rope with radius 4mm is holding the weight of a climber mass 60kg. What is the strain on the rope?
2
300 sec
Q.
A rope with radius 4mm is holding the weight of a climber mass 60kg.
The rope stretches 4cm from an original length of 3m.
What is the Young’s Modulus of the rope?
3
300 sec
Q.
What is the gravitational force of attraction between the Earth ($m_{e}=6\times10^{24}kg$) and a satellite mass $3,000kg$ which is $7,000km$ away
($G=6.67\times10^{-11}Nm^{2}kg^{-2}$)
4
300 sec
Q.
What is the acceleration towards the centre of the Earth on a satellite 7000km from its centre.
(Mass of Earth $m_{e}=6\times10^{24}kg$ , $G=6.67\times10^{-11}Nm^{2}kg^{-2}$)
5
300 sec
Q.
What is the magnitude of the electro-static force on two oppositely charged particles both having $4\mu C$ of charge and departed by 2mm.
$k=9\times10^{9}Nm^{2}C^{-2}$
6
300 sec
Q.
What is the strength of the electric field on a particle which is 3mm away from a charge of $4\mu C$.
($k=9\times10^{9}Nm^{2}C^{-2}$)
