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Consider two spheres with two masses and two charges. At a distance of 119.0 m, the ratio of the electric force to the gravitational force is f. As a multiple of f, what is the ratio between the forces when the distance is increased by a factor of 2?
A constant electric field E=100 N/C*i is present throughout a region of space that includes the plane bounded by the x, compute The electric flux at the plane's surface
White light containing wavelengths from 405 nm to 760 nm falls on a grating with 8000 lines/cm. How wide is the first-order spectrum on a screen 2.20m away.
Starting from rest, a boulder rolls down a hill with constant acceleration and travels 4.00 during the first second. How fast is it moving at the end of the first second
A star moving away from the Earth at 0.320c emits radiation that we measure to be most intense at the wavelength 530 nm. Determine the surface temperature of this star
The 1st man to orbit the Earth was Soviet cosmonaut Yuri Gagarin, on April 12, 1961. What was the spacecraft's speed at this point in its orbit
Two kids decide to race from one end of a 20 meter long moving sidewalk to the other and back. Phillip runs on the sidewalk at 2.0 meters/sec (relative to the sidewalk). Who wins the race
light of wavelength lambda nought in a vacuum has a wavelength of 435nm in water and 390 in benzene. what is the index of refraction of water relative to benzene
A 12 g bullet is stopped in a block of wood (mw = 5.6 kg). What was the original speed of the bullet
A diffraction grating is made up of slits of width 420 nm with separation 1300 nm. How many maxima are there in the full diffraction pattern
An astronaut weighs 85 N on the Moon, where the acceleration of gravity is 1.62 m/s2. How much (in N) does she weigh on Earth
question a large aquarium of height 5.98 m is filled with fresh water to a depth of d 2.40 m. one wall of the aquarium
A person bending forward to lift a load "with his back" (Figure (a)) rather than "with his knees" can be injured by large forces exerted on the muscles and vertebrae. The spine pivots mainly at the fifth lumbar vertebra, with the principal support..
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