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The radius of the lightbulb is 0.099 m and the distance between the Sun and the Earth is 1.5 * 10 ^11 m.
The power of lightbulb is 100 Watts. I found the intensity of lightbulb which is about 812 Watt/m^2. Using these information, find the intensity of the Sun.
Consider the mass spectrometer shown schematically in the figure below. The electric field between the plates of the velocity selector is 2100 V/m, Calculate the radius r of the path for a singly charged ion with mass m = 2.29 10-26 kg
The lows note emitted by stretched string has a frequency of 50Hz.how many outcome are possible between 40Hz and 170Hz.
A diver releases an air bubble of volume 2.9 cm3 from the depth of 18 m below the surface of a lake, where the temperature is 7.2°C. What is volume of the bubble when it reaches just below the surface of the lake, where the temperature is 22°C.
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -45cm, Use ray tracing to determine the location of the image
A swimming pool has dimensions 32 m 11 m and a flat bottom. When the pool is filled to a depth of 2.10m with fresh water, what is the force caused by the water on the end that is 11m.
A 32.0 kg hammer strikes a steel spike 2.70 cm in diameter while moving with speed of 24.0 m/s. The hammer rebounds with speed 11.0 m/s after 0.110 s. What is an average strain in the spike all through the impact.
Small particles suspended in the air have a v_rms = 2.8 x 10^-3m/s. What is the mass of one of the small particles
An oil rig in the gulf is held at its designated drilling location by 3 tugboats. tugboat A oulls with 42000 N straight in the east direction. Tugboat B pulls at an angle of 50 degrees north of west. tugboat C pulls 25 degress west of south. draw ..
Calculate the angular velocity? of an electron orbiting a proton in the hydrogen atom, given the radius of the orbit is 0.500x10-10 m . You may assume that the proton is stationary and the centripetal force is supplied by Coulomb attraction.
Light with a wavelength of 4.5 x10-5 cm passes through a single slit and falls on a screen 100 cm away. If the slit is 0.015 cm wide, what is the distance from the center of pattern to first dark band.
An arrow is fired with a speed of 23 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into block before coming to rest relative to it. All through this process the arrow's deceleration has the magnit..
What is the magnitude of the normal force exerted by the car.
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