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a 40-cm-tall object is 30 cm in front of a diverging lens that has a -15 cm focal lengthpart acalculate the image
the 142 kn is flying in the vertical plane at 128ms at the instant shown angle teta30 and the cartesian components of
a cube of an unknown element has a shiny silvery color the side of the cube measures 20cm and the cube has a mass of
suppose a uniform meterstick is at rotational equilibrium when a 200 g mass is suspended at the 5 cm mark a 130 g mass
the electron gun in an old crt television accelerates electronsbetween two charged parallel plates the cathode is
a if two vectors have unequal magnitudes can their sum be zero explainb can the magnitude of a particles displacement
a car traveling at an initial speed v slides a distance d to a halt after its brakes lock assuming that the cars
consider a small raindrop and a large raindrop falling through the atmosphere compare their terminal speeds what are
a steel tank is completely filled with 270 m3 of ethanol when both the tank and the ethanol are at a temperature of 310
suppose a 900-kg car is on the bridge in figure with its center of mass halfway between the hinges and the cable
a standard nuclear power plant generates 24gw of thermal power from the fission of 235u experimentdescriptiona standard
you have 3 resistors available two are 125 ohm resistors and one is 250 ohma what is the total resistance of a circuit
a 60kg child is riding the swing ride at a fair in a circle of radius 600m if the angle the swing makes with the
a man wishes to vacuum his car with a canister vacuum cleaner marked 535 w at 120 v the car is parked far from the
a softball pitcher throws an underhanded pitch with the arm fully extended straight at the elbow the ball leaves the
suppose the suns gravity were switched off the planets would leave their nearly circular orbits and fly away in
a vacuum-filled parallel plate capacitor has an energy density of 01 jm3 and the plates are separated by 02 mm an
1 for an inductor should the voltage be out of phase with the current by how much why2 for a capacitor should the
this is a question in optics and an explanation is required please helphow could you make an object that is not readily
a particle of mass m is shot with an initial velocity vi making an angle theta with the horizontal as shown in figure
three resistors are connected in series across a battery the value of each resistance and its maximum power rating are
a 9500-kg truck runs into the rear of a 1000-kg car that was stationary the truck and car are locked together after the
a person pushes a 125nbspkgnbsplawn mower at constant speed with a force of 890nbspnnbspdirected along the handle which
a 7900-kg truck runs into the rear of a 1000-kg car that was stationary the truck and car are locked together after the