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a spring is compressed by 00748 m and is used to launch an object horizontally with a speed of 264 ms if the object
1 a fisherman notices that wave crests pass the bow of his anchored boat every 320 s he measures the distance between
a 60 kg person jumps from rest off a 5m high tower straight down into the water neglect air resistance during the
a very fast-moving train car passes you moving to the right at 050c you measure its length to be 12m your friend david
120-v rms signal at 600hz is applied across a 300mh inductor and a 100 resistor what is the rms value of the voltage
1 a violin string vibrates at 264 hz when unfingered at what frequency will it vibrate if it is fingered one fourth of
a irregular piece of metal has a dry mass of 57 kg once it is submerged it has an apparent mass of 24 kg what is the
a two balloons of identical volume radius 115 m are filled with gas the first with helium the second with hydrogen h2
what approximations can you make about reactances when the series rcl circult is connected to a batterywhich reactance
the plane of a flat circular loop of wire is vertical an external b-field is directed perpendicular to the plane of the
consider a 4500 ohm resistor in series with a 133 mh inductor what capacitance should be added in series so that the
a beam of gamma rays from a distant galaxy is observed through two polarizing filters whose transmission axis is at a
a large tank of water is full and has a depth of 100 m what is the pressure at the bottom of the tank what would the
a 245 kg person lays on board that is supported only on the ends and that has a mass of 120 kg if the person and the
a pair of hedge trimmers are 45 cm long from the pivot to the end of the handles if the person applies of a force of 15
there are three masses m1 20 kg m2 50 kg and m3 70 kg the mass are all affixed to a massless rod of length 15cm m1
a street light is supported by two wires and each makes a different angle from each other the one on the left is 32
at an outdoor market a bunch of bananas attached to the bottom of a vertical spring of force constant 160 nm is set
a capacitor with a capacitive reactance of is connected in series with a 100 resistor across in ac source of frequency
in a mass spectrometer a singly negative charged ion having a particular velocity selected by using a magnetic field of
an ac generator supplies 15 amps at 440v to a 50000v power line through a step-up transformera what must the turn ratio
a bar magnet is dropped through a coil of wirea describe what will be observed on the galvanometer by sketching a graph
a proton with a speed 15 x 105 ms falls through a potential difference of 100 volts gaining speed what is the speed
with what speed in mileshr 1 ms 223 mihr must an object be thrown to reach a height of 915 m equivalent to one
it was once recorded that a jaguar left skid marks that were 290 m in length assuming that the jaguar skidded to a stop