Ariver current has a velocity of 5 km/h relative to the shore. a boat moves in the same direction as the current at 4 km/h relative to the river.
how do you calculate the velocity of the boat relative to the shore?
divide the river’s velocity by the boat’s velocity
subtract the boat’s velocity from the river’s velocity
add the river’s velocity to the boat’s velocity
Answers: 3
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Ivana walks 2km north then turns around and walks 3km south
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Which pair below describes isotopes of the same element? a) an atom with 6 protons and 8 neutrons - an atom with 8 protons and 6 neutrons b) an atom with 6 protons and 6 neutrons - an atom with 6 protons and 7 neutrons c) an atom with 8 protons and 8 neutrons - an atom with 7 protons and 8 neutrons d) an atom with 7 protons and 6 neutrons - an atom with 6 protons and 6 neutrons
Answers: 1
Ariver current has a velocity of 5 km/h relative to the shore. a boat moves in the same direction as...
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