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A stamp collector is viewing a stamp by a magnifying glass held next to her eye. Her near point is 25 cm from her eye. The refractive power of a magnifying glass that has an angular magnification of 6.0 when the image of the stamp is located at the near point is 20 dioptres.
a) What is the angular magnification when the image of the stamp is 41 cm from the eye?
You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force , which acts perpendicular to the wings.
q1. a beam of light strikes a sheet of glass at an angle of 57.0circ with the normal in air. you observe that red light
A uniform cylinder of radius 10 cm and mass 13 kg is mounted so asto rotate freely about a horizontal axis that is parallel to and3.2 cm from the central longitudinal axis of the cylinder.
A 5.0 kg crate slides down a 60.0 incline with an acceleration of 1.9 m/s2. What is the frictional force between the crate and the incline surface
When the plunger is pushed, contents of the syringe are forced throughout a hollow needle (also of circular cross-If a 4.0 N force is applied to plunger and diameters of the plunger and the needle are 1.20 cm and 2.50 mm, correspondingly, what force ..
A nearsighted person wears contacts with a focal length of ? 6.5cm, what is her uncorrected far-point distance
A circular surface with a radius of 0.059m is exposed to a uniform external electric field of magnitude1.58*104 N/C. The electric flux through thesurface is 80 N · m2/C. What is the angle between the direction of the electric field andthe normal to t..
The coefficient of static friction between the block and table's surface is &mu s = 1/3. The mass of the block that is hanging down is n1 Kg. The tangent of the angle shown in the figure is tan & theta = n2. What is the minimum value of mass, n3 Kg t..
A rifle with a weight of 20 N fires a 4.0-g bullet with a speed of 210 m/s. Find the recoil speed of the rifle
A person pulls a toboggan for a distance of 43.6 m along the snow with a rope directed 28.3 ° above the snow. The tension in the rope is 91.3 N. How much work is done on the toboggan by the tension force
A rope 2.0-m-long has a mass of 0.100 kg. The tension is 65 N. calculate the frequency of the oscillator
A 150 g glider on a horizontal, frictionless air track is attached to a fixed ideal spring with force constant 180 N/m. What is the angular frequency of the oscillations
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