Physics, 07.01.2021 08:00 ariyannamcnabb
John is running around the field. His first lap took 30 seconds to complete and he slowed down his pace during his second lap, which took him 45 seconds. If the distance of one round of field is 200m, calculate the acceleration of John.
Answers: 2
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Aseries circuit contains a 30 e resistor, a 20 resistor, and a 10 resistor. the power supply provides 100 v to the circuit the current in the 10 resistor, to two significant figures, is a.
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Substances that assume the shape of their container, but do not have a definite size are called
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Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?
Answers: 1
John is running around the field. His first lap took 30 seconds to complete and he slowed down his p...
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