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q1 a bird lands on a bare copper wire carrying a current of 23 a the wire is 8 gauges which means that its cross-sectional area is 017 cm2find out
q1 a volkswagen is stopped at a traffic light when the light turns green the driver accelerates so that the car is going 12 ms after 5s what is cars
q1 a unit of area often used in measuring land areas is the hectare defined as 114 m2 an open pit coal mine consumed 77 hectares of land down to the
q1 if the proton is released from rest in a uniform electric field does equivalent electric potential at the protons changing locations increase or
q1 a persons heart and head are 12m and 17m above the feet respectively find out the potential energy associated with 050 kg of blood in the heart
q1 if a parallel mirror he-ne laser had a homogeneous line shape with v15ghz and small signal peak coefficient of 001cm length100cm and reflectances
q1 a charge of 280 rm nc is placed in a uniform electric field that is directed vertically upward and that has a magnitude of 400times104 nc what
q1 a circular loop of radius 11 cm lies in the plane of the paper a constant magnetic field of 250 mt is directed into the paper find out the
q1 a car is travelling with a velocity of 880 kmh it accelerates at a constant rate of 20 ms2 if the acceleration lasts for 56s what is the final
q1 a weight with a mass of 57 kg is suspended from a point near the right hand end of a uniform boom with a mass of 60 kg to support a uniform boom a
q1 a toolbox is carried from the base of the ladder at point a the toolbox comes to a rest on a scaffold 50 m above the ground what is the magnitude
q1 a brick is thrown upward from the top of a building at an angle of 45deg to the horizontal and with an initial speed of 10 ms if the brick is in
q1 when babe ruth hit a homer over the 75 -high right-field fence 98 from home plate roughly what was the minimum speed of the ball when it left the
q1 a rock of mass m 10 kg is tied to a string of length l 19 m and is twirled in a vertical circle the speed v of the rock is constant that is it
q1 gamma-ray busters are objects in the universe that emit pulses of gamma rays with high energies the frequency of the most energetic bursts has
q1 a 350-kg child swings in a swing supported by two chains each 290 m long the tension in each chain at the lowest point is 352 n find the childs
q1 an engine does 20000 j of work and rejects 6120 j of heat into a cold reservoir whose temperature is 285 k what would be the smallest possible
q1 a chair of weight 125 n lies atop a horizontal floor the floor is not frictionless you push on the chair with a force of f 350 n directed at an
q1 an object weighs 302 n in the air when tied to a string connected to a balance and immersed in water it weighs 220 n when it is immersed in oil it
q1 a kid fires water horizontally from a squirt gun held 16 above the ground it hits other kid 24 away squares in the back at a point 085 above the
q1 a 20 g rifle bullet travelling 215 ms buries itself in a 37 kg pendulum hanging on a 28 m long string which makes the pendulum swing upward in an
q1 a small metal bead labelled a has a charge of 29 nc it is touched to metal bead b initially neutral so that the two beads share the 29 nc charge
q1 an airplane flies 200 km due west from city a to city b and then 315 km in the direction of 330deg north of west from city b to city cq2 a worker
q1 a 20 kg piece of wood slides on the surface the curved lateral sides are perfectly smooth no resistance but the horizontal bottom is rough and has
q1 in a gas at standard temperature and pressure what is the length of the side of a cube that contains a number of molecules equal to the population