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q1 a 28 kg loudspeaker is suspended 30 m below the ceiling by two cables that are each 64 degrees from vertical what is a tension of the cableq2 two
q1 a 400 x 100 g glass coffee cup is 220 c at room temperature it is next plunged into hot dishwater at the temperature of 800 c if the temperature
q1 a street lamp weight 164n it is supported equally by two wires that form an angle of 129 degrees with each other what is the tension of each of
q1 on a workday the average decibel level of the busy street is 82 db with 100 cars passing a given point every minute if the number of cars is
q a woman walks 252 m in the direction 650deg east of north then 212 m directly easta find the final displacement from the starting pointb how much
q1 a 245 ball is tied to a string it is pulled to an angle of 520 and released to swing as a pendulum a student with a stopwatch finds that 10
q1 a 012-kg ball is placed in a shallow wedge with an opening angle of 120deg as shown in the figure for each contact point between the wedge and the
q1 an 825-n sled is pulled a distance of 161 m the task requires 150 104 j of work and is done by pulling on a rope with a force of 137 n at what
q1 how much would an 800 kg person weight a on mars where an acceleration of gravity is 393 ms2 and b on earths moon where the acceleration of
q1 a car slows down with an acceleration that has a magnitude of 36 ms2 while doing so it travels 113 m in the x direction and ends up with a
q1 if the accelerating plates are 160 apart and have a potential difference of 260times104 what is the magnitude of the uniform electric field
q1 a guitar string is 75 cm long and has a mass of 38 g from the bridge to the support post l is 60 cm and the string is under a tension of 558
q1 suppose that the two speakers are separated by 250 m and are vibrating exactly out of phase at a frequency of 429 hz the speed of sound is 343 ms
q1 a 48-m length of wire is stretched horizontally between two vertical posts the wire carries a current of 64 a and experiences a magnetic force of
q1 a vertical electric field of magnitude 300 104 nc exists above the earths surface on a day when a thunderstorm is brewing a car with a rectangular
q1 runner a is at first 54 km west of a flagpole and is running with a constant velocity of 26 kmh due east runner b is initially 30 km east of the
q1 the total momentum of a closed system is observed to be 670 kgms east the system consists of 36 objects that are observed to be colliding with
q1 according to the guinness book of world records 1990 edition p 169 the highest rotary speed ever attained was 2010 ms 4500 mph the rotating rod
q1 an electron and a neutral carbon atom are firstly 22 times 10-6 m apart and there are no other particles in the vicinity the mass of the electron
q1 a cannonball shot with the initial velocity of 133 ms at an angle of 59deg follows a parabolic path and hits a balloon at the top of its
q1 consider the gas consisting of a large number of non-interacting particles in which energy of each particle can assume one of the four values 0
q1 points a and b have electric potentials of 293 v and 149 v respectively when an electron released from rest at point a arrives at point c its
q1 a hula hoop of radius 10m is in a uniform electric field with magnitude 14 x 102 nc its normal is parallel to the field what is flux through the
q1 points a and b have electric potentials of 320 and 160 respectively when an electron released from rest at point a arrives at point c its kinetic
q1 two alpha particles helium nuclei each consisting of two protons and two neutrons have the3 electrical potential energy of 612times10-19 jwhat is