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A converging lens has a focal length of 25.0 cm. A ruler (30.0 cm in length) is located 50.0 cm in front of the lens and oriented at an angle of 90 degrees to the principal axis, as shown below. What are the a) location and b) height of the image?
a crowbar 2m long is used to lift a rock 800n. if the fulcrum is 0.25m from where the crowbar touches the rock, how much effort must be applied to move the rock
The position of an object connected to a spring varies with time according to the expression x = (5.9 cm) sin(8.7?t). (a) Find the period of this motion. s (b) Find the frequency of the motion. Hz (c) Find the amplitude of the motion. cm (d) Find the..
The gravitational potential energy of all the water stored behind a very large dam is 1.2Ã-10^16 J, How far apart should you place the charges
Several children are on a sled pulled by a four-wheeler across a level snow-covered field
How to discuss the results in relation to the objectives of the experiment of CENTRIPETAL FORCE? Next, how am i supposed to elaborate the results that I obtained if my results are confirmed the centripetal force theory.
An electron in an atom has an orbital angular momentum with ml = 0. What is the component morb,z? (J*s) What is the component ?orb,z? (J/T) If an atom is in an external magnetic field B of magnitude 45 mT and directed along the z-axis, what is the..
To lift a wire ring of radius 1.95 cm from the surface of a container of blood plasma, a vertical force of 1.79 10-2 N greater than the weight of the ring is required. Find the gauge pressure at the pipe input
Calculate the flux of F through a sphere of radius a, centered at the origin and the flux of F through a planar disk of radius a, parallel to the xy plane and centered at the z axis at z=H
A sound source emits sounds of frequency 205 Hz that travel through still air at 340 m/s. The listener moves at 90 m/s relative to the still air away from the stationary source. Find the frequency heard by the listener.
a circuits consists of a resistor and a capacitor in series with an ac source that supplies an rms voltage of 240 v. at
A steel wire has the following properties: Cross-sectional area = 0.040 cm^2 Young's modulus = 2.0 x 10^11 Pa Shear modulus = 0.84 x 10^11 Pa Proportional limit = 3.60 x 10^8 Pa Breaking stress = 11.0 x 10^8 Pa, What is the maximum weight that can ..
Light rays in a material with index of refraction 1.29 can undergo total internal reflection when they strike the interface with another material at a critical angle of incidence. Find this material\'s index of refraction
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