The oldest rocks found on earth are 3.96 billion years old. however, scientists believe the earth is about 4.6 billion years old. what evidence supports this idea? choose all that apply.
the moon and all the meteorites found on earth are about 4.6 billion years old.
there is no evidence to support the idea that the earth is over 3.96 billion years old.
the moon and all the meteorites found on earth are thought to have formed before the earth.
all parts of the solar system are thought to have formed at the same time.
which all that apply
Answers: 2
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Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
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An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?
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Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
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