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A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +3.3. What is the magnification when the convex side is used as a mirror, the object remaining the same distance from the mirror? If the object is inverted, then enter a negative number. Otherwise, enter a positive number.
A cat walks 8.0 m north, 5.0 m east and then 6.0 m south. What is the magnitude of the cats displacement from the starting point
A parachutist bails out and freely falls 61 m. Then the parachute opens, and thereafter she decelerates at 2.3 m/s2. How long is the parachutist in the air
An orange is thrown straight up with an intial velocity of10m/s. A small gun is positioned 1 m below the orange'sintial position. Given the intial velocity of a bullet gunfired is 30m/s. Our goal is to hit the oragne when it reachesthe highest poi..
The wavelength of red helium-neon laser light is 632.8 nm. What is the wavelength of the laser light in the class that has an index of refraction of 1.5 in units of nm, What is the speed of the laser light in the glass in units of 10^8 m/s
In a simple atom, the electrons making transitions between outermost energy levels and the innermost energy levels give rise to photons with the reddest colours.
A charge of -2.20 micro coulombs is located at (3.00m, 4.50m), and a charge of +3.60 micro coulombs is located at (-2.8m, 0m).
When an ion accelerates through a potential difference of 2240V, What is the charge on the ion
A point charge of 8.40 mC is surrounded by an equipotential surface with a radius of 0.280 m. What is the electric potential on the surface
a solid uniform sphere of mass 2.0 kg and radius 1.7m rolls without slipping down an inclined plane of height 6.7 m.
An aluminum wire carrying a current of 3.0 A has a cross-sectional area of 2.0 ? 10-6 m2. Find the drift speed of the electrons in the wire
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m above the floor. How long will it take the ball to hit the floor
Two particles of equal but unknown charge are held 45 cm apart. If their electrostatic repulsion is 2.2 X 10^5 Newtons, what is the magnitude of their charge
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