(11)
if the motorbike is driven at the sum upuu
marks)
2.
the diagram shows...
(11)
if the motorbike is driven at the sum upuu
marks)
2.
the diagram shows two children playing with a toy called a swing ball. the ball is joined to
a pole by a strong string. the children hit the ball so that it goes round in a circular path.
air
resistance
tension
weight
circular path
of swing ball
(a)
name the force labelled in the diagram that causes the ball to move in a circle? (1)
(b) choose the correct response:
(1)
the force needed to make the ball move in a circular path is larger if
a) the speed of the ball is increased.
b) the speed of the ball is decreased.
c) the string is made longer.
Answers: 2
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Liv sheldon given the balanced equation for an organic reaction: c2h2 + 2cl2 → c2h2cl4 this reaction is best classified as *
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If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5
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What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?
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