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questiona convex lens is a transparent device that uses refraction to twist and focus light from an object forming a sharp image well first
question1assume you have a furnace wall that is constructed of two types of brick the temperatures of inner and outer surfaces of the wall are 600
questiona machine part consists of a thin 400 cm long bar with small 115 kg masses fastened by screws to its ends the screws can carry a maximum
question1using a simply pulley or rope system a crewman on an arctic expedition is trying to lower a 630 kg crate to the bottom of a steep ravine of
questiontwo hockey players aaron and brunnhilde are pushing two pucks on a frictionless ice rink the pucks are at first at rest on starting line
question1air is blown throughout a circular and horizontal venturi tube the diameters of narrow and wider sections of the tube are given and height h
question1hold switch closed place a magnetic field sensor between the turns of the slinky by its center rotate the sensor and decide that direction
question1two bicycle tires are set rolling with the same initial speed of 400ms along a long straight road and distance each travels before its speed
questiona common misconception is that current is used up and steadily declines as it progresses through a series of resistors that would be
question1youre ceo of a courier company and you decide to select an electric car for your fleet of vehicles a particular car has a mass of 1500kg and
question1a 100-kg athlete is performing vertical leap to test his leg strength he leaves ground at 320 ms zooms upward to some highest altitude and
question1alan leaves university of lethbridge at 800am to drive to au 650 km away he leaves at an average speed of 100kmh beth leaves lethbridge at
question1the drawing not to scale shows one alignment of the sun earth and moon the gravitational force that the sun exerts on the moon is
questiona capacitor is constructed from 2 square metallic plates of sidersquos scripted l and separation d charges q and -q are placed on plates and
question1an unstable nucleus of mass 34 10-26 kg initially at rest at an origin of a coordinate system disintegrates into 3 particles one particle
question1a 0145-kg baseball pitched horizontally at 39 ms strikes bat and is popped straight up to a height of 32 m if contact time between the bat
question11 give an everyday instance that illustrates the difference between acceleration and velocity give a case of uniform and accelerated motion
question1a projectile is launched at 28 ms at 22 degrees above horizontal from the top of a building that is 62 meters above ground it is fired from
question1a softball of mass m 0195 kg is pitched at a speed v0 273 ms due to air resistance by time it reaches home plate it has slowed by 101
question1 nbspgravity you shouldnrsquot need a calculator for these problems a sum up the universal law of gravitation in words then state the law
question1a boat crosses a river of width 171 m in which the current has a uniform speed of 151 ms the pilot maintains a bearing such as
question1batman whorsquos mass is 110 kg is holding on to free end of a 508 m rope other end of which is fixed to a tree limb above he is able to get
question1loudspeaker of mass 250kg is suspended a distance of h 240m below the ceiling by two cables that make equal angles with the ceiling each
question1a 120kg shell is launched at an angle of 550 degrees above horizontal with an initial speed of 150 ms when it is at its highest point the
question1reduce equations of motion to an equivalent one-dimensional problem and discuss qualitative nature of the orbit for different values of the