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A spherical mirror is polished on both sides. When used as a convex mirror, the magnification is +1/7. Determine the magnification when used as a concave mirror, the object remaining the same distance from the mirror? Give your answer to three significant figures.
there are two identical positively charged conducting spheres fixed in space. the spheres are 39.4 cm apart center to
When responding to sound, the human eardrum vibrates about itsequilibrium position. What is the maximum acceleration of the eardrum
A capacitor is connected across the terminals of an ac generator that has a frequency of 424 Hz and supplies a voltage of 26 V. Find the capacitance of the second capacitor
A block of mass, 578 g is pushed against the spring by spring constant 7.4N/m (located o the left-hand side of the track) and compresses the spring a distance of5.3 cm from the equilibrium position.
An electron in an infinite potential well (a box) makes a transition from the n = 3 level to the ground state and in so doing emits a photon of wavelengh 20.9 nm. what is the width of this well
1 explain what is meant by the terms isothermal expansion and adiabatic expansion. in each case derive an expression
An electron that is moving through a uniform magnetic field has a velocity v = (30 km/s)i + 18 km/s)j when it experiences a force F = (-4.000×10-15 N)i + (6.667×10-15 N)j due to the magnetic field. If Bx = 0, calculate the magnitude of the magnetic f..
A car starts from rest and moves around a circular, horizontal,level track of radius 30.0 m. Its speed increases at the constantrate of 0.500 m/s2. (a) What is the magnitude ofthe net acceleration 15.0 s later?
a visible light photon takes 8.3 minutes to travel from the solar photosphere to the earth. calculate how long it would
Two identical positive charges exert a repulsive force of 6.6 x10-9 N when separated by a distance of 5.4 10-10 m. what is the charge of each.
a 1200 kg car moving at 15.6 ms collides with a stationary car of mass 1500 kg if the two vehicles lock together what
determine the distance between the centers of the two plates.
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