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The position of a 30 g ball is measured to be 27.3 cm +/- .004 cm (that is: the position is 27.3 cm with an uncertainty of .004 cm) What is the uncertainty in the velocity of the ball?
If both of them are simultaneously plucked at the center, illustrate what is the frequency of the beats that they will produce when vibrating in their fundamental?
A candle with a flame 2.2 cm tall is placed 5.4 cm from the front of a concave mirror. How tall is the image of the flame
A hydrogen atom in the ground state absorbs a 20 eV photon. What is the speed of the liberated electron
A nuclear power plant operates at 80% of its maximum theoretical (Carnot) efficiency between temperatures of 700°, how much exhaust heat is discharged per hour
A 140 g ball moving at 0.50 m/s in the + x-direction is subject to a 0.15 N force in the - y-direction for 3.0 s . a) Find the magnitude of the ball's momentum change. b) Find the ball's final speed. c) Find the angle between the ball's final velocit..
The potential at location A is 392 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 780 V, and when released from rest from this spot, the particle arrives at B wit..
Water flows at a rate of 26L/min through a horizontal 8.0 cm diameter pipe under a pressure of 9.2 PA. What is the pressure at this point
A small plane departs from point A heading for an airport 500 km due south at point B, Determine the proper heading for the plane and the time of flight
A plate of glass with parallel faces having a refractive index of 1.46 is resting on the surface of water in a tank. What angle does the ray refracted into the water make with the normal to the surface? Use 1.33 for the index of refraction of water
compass needle points 25 degrees E of N outdoors. However, as it is placed 17 cm to the east of a vertical wire inside a building it points 61 degrees E of N. What is the magnitude of the current in the wire? The earth field there is 0.50X10^-4 T ..
A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0 rad/s2. what is the magnitude of the total acceleration a
Determine the magnitude of the emf EMF induced in the loop after exactly time 6.00 s has passed since the circumference of the loop started to reduce.
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