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A 9.50 cm tall object is placed at a distance of 17.20 cm from a CONVEX MIRROR. The distance from the mirror to its focal point is 11.40 cm. Find the magnification of the image formed by the mirror. Give answer using 3 significant figures and use the correct sign.
two wires are kept tight between the same pair of supports. the tensions in the wires are in the ratio 41 the radii are
A 23.0 kg child plays on a swing having support ropes that are 2.10 m long. How fast will she be moving at the bottom of the swing
A rope is attached to a car and pulled with a 75 N force at an angle of 15 degrees NE. What is the net force and what is its direction
The allowed energies of a simple atom are 0.0eV , 3.5eV and 5.0eV . An electron traveling at a speed of 1.6×10^6m/s collisionally excites the atom. What is the maximum speed the electron could have after the collision
A 40 g rifle bullet travelling 260 m/s buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.
In a constant-temperature process, the pressure of a gas is allowed to decrease from 6.7Af-105 Pa to 2.4Af-105 Pa. Find the final volume for an initial volume of 0.69 m3.
A thin copper plate of mass m has a shape of a square with a side b and thickness d. The plate is suspended on a vertical spring with a force constant k in a uniform horizontal magnetic field B parallel to the plane of the plate. Find the period of t..
A 75g lead sinker at 90 degrees celsius is placed in 500 cm^3 of water at 20 degrees celsius. What is the final temperature of the sinker
a proton starting from rest travels through a potential of 1.0 kv and then moves into a uniform 0.040-t magnetic field.
Wool is rubbed against a plastic ruler. If the plastic ruler acquires a charge of -5 µC, how many electrons have been transferred to the ruler
A 150-V battery is connected across two parallel metal plates of area 28.5 cm2 and a separation of 8.20 mm. A beam of alpha particles (charge +2e, mass 6.64E-27 kg) is accelerated from rest through a potential difference of 1.75 kV and enters the reg..
The radius of curvature of a highway exit is r = 95.5 m. The surface of the exit road is horizontal, not banked. If the static friction between the tires and the surface of the road is μs = 0.408, then what is the maximum speed at which the car can ..
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