Some believe that the positions of the planets at the time
ofbirth influence the newborn. othe...
Some believe that the positions of the planets at the time
ofbirth influence the newborn. others deride this belief andclaim
that the gravitational force exerted on a baby by theobstetrician
is greater than that exerted by the planets. to checkthic laim,
calculate and compare the gravitational force exerted ona 3 kg
baby
a.) by a 70 kg obstetrician who is 1 m away and
roughlyapproximated as a point mass
b.) by the massive planet jupiter (m = 2 x 1027
kg)at its closests approach to earth
( = 6 x 1011 m)
c.) by jupiter at its greatest distance from earth ( = 9
x1011 m)
d.) is the claim correct?
Answers: 2
Physics, 22.06.2019 13:40
Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
Physics, 22.06.2019 21:10
Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.
Answers: 2
Physics, 22.06.2019 23:00
Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.
Answers: 1
Physics, 22.06.2019 23:10
Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity
Answers: 2
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