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a convex lens of focal length 5 cm is usedas a magnifying glass at what distance from a tiny insect should you hold
a light ray is incident on the outer surface of the vitreous humor at an angle of 420deg with the normal find the angle
a car was moving on the highway at a speed of 90 kmh the driver then stepped on the gas and started to accelerate
if a real object is placed inside the focal point of a diverging lens the image isvirtual inverted andreducedvirtual
student lifted a 300 kg stone from point 0500m above the floor toa point 175 above the floor and dropped ita calculate
in a certain time period a coil of wire is rotated from oneorientation to another with respect to a uniform 038-t
a bucket filled wwater has a mass of 30kg and is attached to arope that is wound around a cylinder wradius of 50cm at
a car manufacturer claims that you can drive their new vehicle across a hill with a 47 degree slope before the vehicle
two initially uncharged capacitors of capacitance c and2c are connected in series across a battery determinewhether
1 yellow light of vacuum wavelength 589 nm travels at 1942 x108 ms through quartz quartz is a nonmagneticdielectric
in a certain nuclear reaction outgoing protons are observed withenergies 162 mev 148 mev 116mev 89mev and 67mev
a 012- kg ball is moving at 6 ms when it is hit by a batcausing it to reverse direction and have a speed of 14 ms what
a 33 k and a18 k resistor areconnected in parallel and this combination is connected in serieswith a 18 k resistor if
a ball is thrown horizontally from the roof of a building 56 m tall and lands 45 m from the base what was the balls
a 120-v motor has mechanical power output of 300 hp it is 800 efficient inconverting power that it takes in by
at a certain distance from a point charge the potential andelectric field magnitude due to that charge are 498 v and
as the earth rotates through onerevolution a person standing on the equator traces out a circularpath whose radius is
a proton moving at a speed of 38 acute 106 ms cutsacross the lines of a magnetic field at an angle of 30deg the
a tortoise can run with a speed of 90 cms and a hare canrun 20 times as fast in a race they both start at the same
two rowers who can row at the same speed in still water setoff across a river at the same time one heads straight
a daredevil decides to jump a canyon its walls are equallyhigh and 15 m apart he takes off bydriving a motorcycle up a
the radius of the earths orbit around the sun assumed to becircular is 150 108 kmand the earth travels around this
lightning occurs when there is a flow of electric charge principally eletcrons between the ground and a thundercloud
a train moving with a constant velocity of 256 mstravels 132 m north in 141 s and an undetermined distance to
an athlete executing a long jump leaves theground at a 30deg angle and travels 680 m if this speed were increased by