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In the ground state of hydrogen, theuncertainty in the position of the electron is roughly 0.10nm. If the speed of the electron is on the order of theuncertainty in its speed, how fast is the electron moving?
A stationary observer hears 597.6 Hz change to 447.8 Hz as a source of constant frequency passes at constant speed. find the source's speed and frequency
A count rate meter is used to measure the activity of a given sample. At one instant, the meter shows 4.750 counts/min. Five minutes later, it shows 2700 counts/min.
When point charges q1 = +7.0 ?C and q2 = +6.6 ?C are brought near each other, Determine the distance between the charges
A circuit that consists of a capacitor in series with a 50 ohm resistor draws 4 A from a 250-V(rms), 200 Hz power source. how much power would the circuit dissipate
The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
A 1.08 kg mass is at the center of a uniform spherical shell of mass 1.05 1020 kg and radius 1.11 106 m. Find the resultant gravitational force on the mass
A bird sits on a high-voltage power line with its feet 5.2 cm apart. What is the potential difference between the bird's feet
The wheels, axle, and handles of a wheelbarrow weigh W = 68 N. The load chamber and its contents weigh WL = 605 N. Find the magnitude of the man's force for both designs
The pilot of an aircraft wishes to fly due west in a 30.8 km/h wind blowing toward the south. In what direction should the aircraft head
An AC generator supplies an rms voltage of 220 V at 60.0 Hz. It is connected in series with a 0.450 H inductor, a 5.20 %u03BCF capacitor, What is the peak voltage across the inductor
An object of mass 3.00 kg, moving with an initial velocity of 5.00i m/s, collides with and sticks to an object of mass 2.00 kg with an initial velocity of ?3.00j m/s
what is the speed of a 200g baseball with a de Broglie wavelength of .18nm, what is the de Broglie wavelength of a 200g baseball with a speed of 20 m/s
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