OC userin Physics·20 Jul 2019You want to use a 5.0 O, 15 mA galvanometer coil as a 20 V voltmeter. What resistance should be placed in series with the coil?
OC userin Physics·7 Feb 2019How much would you age in traveling a distance of 4.98 light years from earth if you were able to travel at a speed of 0.898c?
OC userin Physics·4 May 2019A spaceship with a proper length of 101 m passes an observerat a speed of0.94353c.What is the length of the ship as seen by the observer?
OC userin Physics·16 Feb 2019A very long nonconducting cylinder of diameter 10.0 cm carriescharge distributed uniformly over its surface. Each meter of lengthcarries +5.50 µC of charge. A proton is released from rest justoutside the surface. How far will it be from the surface of thecylinder when its speed has reached 2550 km/s? The mass of theproton is 1.67 à 10-27 kg and e = 1.60 à 10-19 C.Paragraph
OC userin Physics·13 Jun 2019How fast must a meter stick move relative to an observer sothat she would measure its length to be 8.5 cm? (Enter your answerto five significant figures.)
OC userin Physics·7 Aug 2019Find the potential difference through which an electron mustbe accelerated to give it a final speed of0.930c, starting from rest.
OC userin Physics·28 Jun 2019Consider two long, straight parallel wires, each carrying a currentI. If the currents are flowing in opposeite directions:a. the two wires will attract each otherb. the two wires will repel each otherc. the two wires will exert a torque on each otherd. neither wire will exert a force on the other
OC userin Physics·10 Aug 2019According to Lenz's law the direction of an induced current in aconductor will be that which tends to prodece which of thefollowing effects?a enhance the effect which produces itb. produce a greater heating effectc. produce the greatest voltaged. oppose the effet which produces it
OC userin Physics·6 Mar 2019A uniform 1.5 T magnetic field passes through the plane of a wire loop 0.3 m <SUP>2 </SUP>in area. What flux passes through the loop when the direction of the 1.5 T field is at a 30 degree angle to the normal of the loop plane?
OC userin Physics·13 Mar 2019An airplane with a wingspan of 60 m flies parallel to the earth's surface at a point where the downward component of the earth's magnetic field is 0.4 x 10 <SUP>4</SUP> T. If the induced potential between wingtips is 9.0 V, what is the plane's speed?
OC userin Physics·2 Apr 2019A flat coil of wire consisting of 20 turns, each with an area of 50 cm 2 ,is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of 0.40 O, what is the magnitude of the induced current?
OC userin Physics·12 Mar 2019The object is placed between the mirrors and is 10cm from each mirror. However, this solution states that d0 is 10cm in front of the plane mirror. Why?
OC userin Physics·8 Sep 20191. A hydraulic press has one piston of diameter 2.0cm and the otherpiston of diameter 8.0 cm. what force must be applie to the smallerpiston to obtain a force of 1600 N at the larger pistion?(Hint: ch 14 on fundamental os physic)
OC userin Physics·14 Aug 20192. The dimension of a wooden raft( density=150 kg/cubic meter) are3.0m X 3.0m X 1.0m. What maximum load can it carry in seawater (density=1020 kg/cubic meter)?Hint:(ch 14 on fundamentals of physic 8th edi)
OC userin Physics·25 Jan 2019A lawn sprinkler is made of a 1.0 cm diameter garden hose with oneend closed and 25 holes, each with a diameter of 0.050 cm, cut nearthe closed end if water flows at 2.0 m/s in the hose,find the speedof the water leaving a hole.Hint:(ch 14, Fundementals of physic 8th edi)