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Questions and Answers
What is the winner of a 400m race required to have the greatest of?
What is the winner of a 400m race required to have the greatest of?
maximum speed
When a tennis ball of mass 0.06kg rebounds at the same speed after hitting a wall, what is the change in momentum of the ball?
When a tennis ball of mass 0.06kg rebounds at the same speed after hitting a wall, what is the change in momentum of the ball?
0.60kg m s
In the given circuit setup, which graph correctly shows how potential difference V varies with length l?
In the given circuit setup, which graph correctly shows how potential difference V varies with length l?
C l
Which of the options correctly defines electromotive force?
Which of the options correctly defines electromotive force?
What is the unit for tension expressed in SI base units?
What is the unit for tension expressed in SI base units?
Which situation could produce the motion of the ball depicted in the graphs?
Which situation could produce the motion of the ball depicted in the graphs?
In which direction should the pilot point the plane to fly due east in the presence of a northerly wind?
In which direction should the pilot point the plane to fly due east in the presence of a northerly wind?
Which graph would be obtained by the student when plotting potential difference V on the y-axis against the corresponding current I on the x-axis?
Which graph would be obtained by the student when plotting potential difference V on the y-axis against the corresponding current I on the x-axis?
Calculate the efficiency of the motor lifting a block of mass 0.050kg at a constant velocity of 0.40 m s–1, with a current of 85mA and a potential difference of 3.0V.
Calculate the efficiency of the motor lifting a block of mass 0.050kg at a constant velocity of 0.40 m s–1, with a current of 85mA and a potential difference of 3.0V.
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