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A pesky 1.7 mg mosquito is annoying you as you attempt to study physics in your room, which is 4.5m wide and 2.5 m high. You decide to swat the bothersome insect as it flies toward you, but you need to estimate its speed to make a successful hit.
A. What is the maximum uncertainty in the horizontal position of the mosquito?
B. What limit does the Heisenberg uncertainty principle place on your ability to know the horizontal velocity of this mosquito?
C. Is this limitation a serious impediment to your attempt to swat it?
A capacitor is connected across an ac generator whose frequency is 746 Hz, What is the magnitude of the maximum charge on one plate of the capacitor
A photon has the same momentum as an electron moving with a speed of 1.83×105 m/s. What is the wavelength of the photon
A 0.534-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
When you touch a friend after walking across a rug on a dry day, you typically draw a spark of about 2 mm. Estimate the potential diference between you and your friend before the spark
A ball initially at rest rolls without slipping down an inclined plane while a block slides without friction down an identical plane. Which arrives at the bottom with more kinetic energy
One day when you come into physics lab you find several plastic hemispheres floating like boats in a tank of fresh water. What is the mass of the heaviest rock that, in perfectly still water, won't sink the plastic boat
what is the final equilibrium temperature of the system?
In a time of T seconds, a motorcycle can accelerate from rest to the speed v. Determine the speed of the motorcycle (in terms of v) 2T after starting
An inductor is connected to a source of sinusoidally varying voltage with constant amplitude and a frequency of 50.0 Hz. what will be the new rms current
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.40 10-4 m3 and its mass is 3.87 kg. What percentage of the rock is gold by mass
In order to drink from your glass you first need to lift it to your mouth. As you begin to lift your 0.20 kg glass of water, it is accelerating upwards at 0.090 m, What is the net force acting on the glass
A 20 kg block is stacked on top of the 20 kg block. Both blocks are glued together. What is the magnitude F of force, acting horizontally on the two blocks, that is required to make the two blocks start to move.
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