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q1 a swimmer tries to swim straight across a river he swims at a speed of 0600 ms relative to the water the river is 240 m wide and the boy ends up
q1 a block with a mass of 20 g is pulled at a constant speed across a horizontal tabletop with a spring scale the scale reads 653n calculate the
q1 two trains each having a speed of 38 kmh are headed at each other on the identical straight track a bird that can fly 70 kmh flies off the front
q1 a hotel elevator ascends 270 m with a maximum speed of 50 ms its acceleration and deceleration both have a magnitude of 17 ms2q2 an artillery
q1 consider a too-small space station that consists of a 31 m radius rotating sphere a man standing inside is 20 m tall and his feet are at 1 g what
q1 assuming that the maximum amplitude of the field at point o for the wave from midway between the slits is er now find out the magnitude of the
q1 compute earths gravitational force on the shuttle astronauts while orbiting at an altitude of 220 miles or 354 km above earths surfaceq2 a child
q1 a water-skier is moving at a speed of 147 ms while she skis in the same direction as a travelling wave she springs upward every 0870 s due to the
q1 a parallel-plate capacitor is formed from two 20 rm cm times 20 rm cm electrodes spaced 50 rm mm apart the electric field strength inside
q1 before throwing a 149 kg discus an athlete rotates it along a circular path of radius 118 m the maximum speed of the discus is 257 msconclude the
q1 a 92 kg man standing on a surface of negligible friction shoves a 73 g stone lying at his feet giving it a velocity of 40 ms what velocity does
q1 a 362 g object is attached to a spring and executes simple harmonic motion with the period of 0200 s if the total energy of the system is 671
q1 throughout a hard sneeze your eyes may shut for 041 s if you are driving a car at 98 kmh during such a sneeze how far does the car move during
q1 a 9300 kg boxcar travelling at 23 ms strikes a second boxcar at rest the two stick together and move off with a speed of 15 ms what is the mass of
q1 a heavy rope used for as a mooring line for a cruise ship sags a shown if the mass of the rope is 96 kg what are the tensions in rope at a and bq2
q1 a driver is driving at 68 mihr on a straight highway he sees an accident on the road in front of him so he slams on the brakes the car decelerates
q1 an artillery shell is fired with an initial velocity of 370 ms at 76deg above the horizontal to clear an avalanche it explodes on the mountainside
q1 an ocean liner leaves new york city and travels 370deg north of east for 171 km how far east and how far north has it disappeared in other words
q1 a 40 cm diameter vertical cylinder is sealed at the top by a frictionless 22 kg piston the piston is 79 cm above the bottom while the gas
q1 two long parallel wires x and y separated by distance of 5 cm in air carry currents of 20 a and 70 a correspondingly in opposite directions
q1 two bodies having masses 30 g and 40 g are attached to the ends of the string of negligible mass and suspended from a light frictionless pulley
q1 you are driving home from school steadily at 80 for 150 it then begins to rain and you slow to 50 you arrive home after driving 3 hours and 20
q1 a magnifier has a magnification of 7xhow far from the lens must an object be placed so that its virtual image is at the near-point distance of 25
q1 the rotational inertia of a collapsing spinning star changes to 45 its initial value what is the ratio of new rotational kinetic energy to the
q1 what is the wavelength of the waves emitted by source what is the difference in frequency between directly radiated waves and the waves reflected