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A car of mass 1170 kg travels at 20 m/s (45 mph). Assume that the velocity measurement is known to within 1 % on either side of this value.
A) What are the maximum value, the minimim value, and the uncertainty of the car's momentum? (in kg m/s)
B) Calculate the minimum uncertainty in thepositionof the car. (in m)
A very long non conducting cylinder of diameter 10.0 cm carries charge distributed uniformly over its surface. Each meter of length carries +5.50 C of charge. A proton is released from rest just outside the surface.
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.70 m/s2 for 4.40 s, With what speed does the car then strike the tree
A 0.04 kg ball is thrown from the top of a 30 m tall building at anunknown angle above the horizontal. find the change in kineticenergy for the trajectory
The maximum induced emf in a generator rotating at 249 rpm is 44 V. How fast must the rotor of the generator rotate
Calculate how fast must a centrifuge rotate if a particle 6.0 centimeter from the axis of rotation is to experience a centripetal acceleration of 500000 m/s2
On the planet Zardem, the standard unit of time is the Zarsec, or Zs, where 1 Zs = 2.2s. how fast is the runner traveling
A cockroach of mass m lies on the rim of a uniform disk of mass 3.28m that can rotate freely about its center like a merry-go-round. Initially the cockroach and disk rotate together with an angular velocity of 0.268 rad/s.
Find the maximum torsional shear stress in a 75 mm diameter shaft transmitting 40 KW power at 1.33 r/s if the maximum twisting moment exceeds the minimum by 40 per cent. What is the greatest twist in degrees per metre length if G =87 GPa?
Highly sensitive ammeters can gauge currents as small as 10.0 fA. How many electrons per second flow during a wire with a 10.0 fA current?
A roller coaster is pulled up a hill of height 95m before being released to coast down a ramp that is inclined at 56 degrees above the horizontal. find the magnitude of average frictional force on the car
Two speakers emit sound waves with frequency of 418 Hz. They are driven by the same oscillator so that they are in phase with each other. How far apart are the antinodes in that standing wave
Light from a helium-neon laser (633nm) illuminates a circular aperture. Determine what is the aperture's diameter
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