Differentiate between conductors


Differentiate between conductors, semiconductors and insulators. [http://www.bezern.com/] Give two examples of each.....

Category Physics

An object that is 30 cm in front of a convex


An object that is 30 cm in front of a convex mirror has an image located 14 cm behind the mirror. [http://www.bezern.com/] How far behind the mirror is the image located when the object is 13 cm in front of the.....

Category Physics

A bowling ball weighs 65 N


A bowling ball weighs 65 N. [http://www.bezern.com/] Find (a) the mass o the ball and (b) the force necessary to accelerate it horizontally at the rate of 18. [http://www.bezern.com/]0.....

Category Physics

An observer detects two explosions


An observer detects two explosions, one that occurs near her at a certain time and another that occurs 2. [http://www.bezern.com/]00 ms later 100 km away. [http://www.bezern.com/] Another observer finds that the two explosions occur at the same place. [http://www.bezern.com/] What time interval separates the explosions to the second.....

Category Physics

A farsighted man uses eyeglasses with a refractive


A farsighted man uses eyeglasses with a refractive power of 3. [http://www.bezern.com/]12 diopters. [http://www.bezern.com/] Wearing the glasses 0. [http://www.bezern.com/]020 m from his eyes, he is able to read books held no closer than 0. [http://www.bezern.com/]250 m from his eyes. [http://www.bezern.com/] He would like a prescription for contact lenses to serve the same purpose. [http://www.bezern.com/] What is the correct contact lens prescription, in.....

Category Physics

An airplane is moving with respect to the earth


An airplane is moving with respect to the earth with a speed of 600 m/s. [http://www.bezern.com/] As determine by earth clocks, how long will it take for the airplanes's clock to fall behind by two.....

Category Physics

An observer O? holds 1.00 m stick at an angle


An observer O? holds 1. [http://www.bezern.com/]00 m stick at an angle 30o with respect to positive x?- axis. [http://www.bezern.com/] O? moving in the positive x- x? direction with velocity 0. [http://www.bezern.com/]8c with respect to the observer O. [http://www.bezern.com/] What are the length and angle of the stick as measured by O.....

Category Physics

a race car starts from rest on a circular track


1. [http://www.bezern.com/] a race car starts from rest on a circular track of radius 400. [http://www.bezern.com/]0m. [http://www.bezern.com/] The cards speed increases at the rate of 0. [http://www.bezern.com/]500m/ssquared. [http://www.bezern.com/] At the point where the magnitudes of the centripetal and tangental accelerations are equal, determine a) the linear speed of the race car b) the distance travelled c) the elapsed time. [http://www.bezern.com/] 2) for the curved fan blades in the position shown below, find the centripetal accerlation and the tangential velocity at point A at the centre of the RH blade tip. [http://www.bezern.com/] Dimensions are.....

Category Physics

The drawing shows a ray of light traveling


The drawing shows a ray of light traveling from pointAto pointB, a distance of 9. [http://www.bezern.com/]50 m in a material than has an index of refractionn1. [http://www.bezern.com/] At pointB, the light encounters a different substance whose index of refraction isn2= 1. [http://www.bezern.com/]63. [http://www.bezern.com/] The light strikes the interface at the critical angle ofc= 52. [http://www.bezern.com/]0°. [http://www.bezern.com/] How much time does it take for the light to travel.....

Category Physics

A beam of particles is directed at a0.011-kg tumor


A beam of particles is directed at a0. [http://www.bezern.com/]011-kg tumor. [http://www.bezern.com/] There are1. [http://www.bezern.com/]3 × 1010particles per second reaching the tumor, and the energy of each particle is3. [http://www.bezern.com/]6 MeV. [http://www.bezern.com/] The RBE for the radiation is 14. [http://www.bezern.com/] Find the biologically equivalent dose given to the tumor in18 s.....

Category Physics

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