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The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.1 x 10-15 meter. The single electron in a hydrogen atom orbits the nucleus at a distance of 5.3 x 10-11 meter. Find the ratio of the density of the hydrogen nucleus to the density of the complete hydrogen atom?
X-ray pulses from Cygnus X-1,a celestial x- ray source, have been recorded during high- altituderocket flights. The signals can be interpreted as originating whena blob of ion- ized matter orbits a black hole with a period of 5.25 ms. If the blob ..
A bicycle travels 141 m along a circular track of radius 30 m. What is the angular displacement in radians of the bicycle from its starting position
U-tube mounted on wood (each arm is about 22 cm long) • Small glass funnel • Thin rubber sheet (5cm by 5cm) • Tall glass container or beaker about 1000 cu.cm capacity • Standard masses, Observe and record the levels of the colored water in arms A ..
A wind turbine is initially spinning at a constant angular speed. Determine the initial angular velocity of the turbine
a customer slides an empty beer mug down the counter for a refill. the height of the counter is 1.31 m. the mug slides
A sign weighing 486 N is suspended at the end of a uniform rod 3.19 m long weighing 565 N. What is the tension in the support cable if it makes an angle of 33.0 deg with the support rod
Consider a one-dimensional particle of mass m feeling the inverse harmonic oscillator potential V=-1/2kx^2 (k>0)
In the circuit shown in the figure (Figure 1) the current through the 12.0-V battery is measured to be 70.6 mA in the direction shown
How much time after engine failure will elapse before the rocket comes crashing down to the launch pad?
a charge of 120 microc is at the center of a cube of edge 80.0 cm. no other charges are nearby.a find the total flux
the eye of a hurricane passes over grand bahama island in a direction 60.0deg north of west with a speed of 38.0 kmh.
Part A: A point charge Q creates an electric potential of +130V at a distance of 25cm. What is Q? Express your answer to two important figures and include the appropriate units.
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