Qualification > Sciences
Edexcel PHYSICS Doubts
dk bose:
I have got a physics doubt.its 4m Edexcel A2 physics students buk.page no 35,exam zone: topic 1,Question no 5.the question is as follows-
palaeontologists are able to deduce much about the behaviour of dinosaurs from the study of fossilised footprints.The tracks in the attachment show the path of a Tyrannosaurus rex as it attacks a stationary Triceratops.The time between the footprints is 0.62s.(a)Show that the maximum speed of the Tyrannosaurus rex is about 10m/s.(b)the tyrannasaurus rex has a mass of 7000kg.calculate the momentuemjust before it hits the triceratops.(c)Triceratopshas a mass of 5000kg.calculate their combined speed immediately after the collision.(d)The skull of tyrannosaurus rex is heavily reinforced to withstand the force produced in such a collision.Calculate the force exerted on the Tyrannosaurus rex if the time taken to reach their combined speed after the collision is 0.30s.
astarmathsandphysics:
See attachment
The Golden Girl =D:
an Airplane with a wingspan of 30m flies at a speed of 100m/s perpendicular to the earth's magnetic field as shown. the earth's magnetic field at the airplane location 60*10-6 T
show the direction of induced e.m.f.
Diagram attached having answer. the pink arrow shows the direction of e.m.f.
how did we know the direction of the resistance :o
thx
The Golden Girl =D:
^ I've got a test tomorrow =[ Anyone ?
iluvme:
I believe its the air resistance which usually opposes the motion of the plane.
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