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This simple demonstration of Einstein's explanation for Brownian motion shows little particles batting about a more massive one, and what it would look like if you could see only the massive one through a microscope. Einstein showed that the overall visible motion, averaged over many observations, exactly matches what you would expect if the little particles were atoms or molecules.
a ball of mass m = 0.5 kg, at rest on top of a "massless" platform. The platform is connected to the ground by a spring of constant K = 100 N/m and the ball is initially 1 m above ground, Write the energy equation corresponding to the bar chat
A particular myelinated axon has nodes spaced 0.80 mm apart. find the conduction speed of a nerve impulse along this axon
A 0.55 kg book slides on ahorizontal table. The kinetic friction force on the book hasmagnitude 1.2 N. How much work is done on the book by frictionduring a displacement of 9.0 m to the left
an alternating rc circuit is constructed from a 331+/- 3 uF capacitor and a 15+/-.15 ohm resistor connected in series with an alternating voltage source that has a frequency of 100 Hz. Determine phase angle between the supplied EMF and the current..
What is walking speed if the speed drops. after an exciting but exhausting lecture, a physic lecture stretch out for a nap on a bed of nails, suffering no injury and only moderate discomfort. how is this possible.
A charged particle moves in a region of uniform magnetic field along a helical path, What is the speed of the particle as it moves along this path
A liquid (? = 1.65 g/cm3) flows through two horizontal sections of tubing joined end to end. In the first section, the cross-sectional area is 10.0 cm2, Calculate the smaller section's pressure
If you wanted to produce a sinusoidal 20V peak-to-peak signal in a 10 cm diameter pick up coil with a 100 turns sitting in a 1.2 T uniform magnetic field, at what angular velocity would you have to spin the coil?
A space probe is traveling in outer space with a momentum that has a magnitude of 4.29 x 107 kg·m/s. A retrorocket is fired to slow down the probe. Determine the momentum of the probe
light with a frequency of 5.40 x 10^14 Hz travels in a block of glass that has an index of refraction of 1.52, what is the wavelenght of the light in vacuum
The glass core of an optical fiber has an index of refraction 1.60.The index of refraction of the cladding is 1.48. What is the maximum angle a light ray can make
A capacitor is connected across an ac generator whose frequency is 751 Hz and whose peak output voltage is 140 V. What is the magnitude of the maximum charge on one plate of the capacitor
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