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while giving an injection with a hypodermic syringe a nurseapplies a force of 395 n to the piston of a syringe the
a vibrating stretched string has length 49 cm mass 12 grams and is under a tension of 44 newtons what is the frequency
in an insulated vessel 260 g of ice at0degc is added to 630 g of water at190degca what is the final temperature of
a 205 kg log is pulled up a ramp by means of a rope that isparallel to the surface of the ramp the ramp is inclined at
water moves from a tank into a tapered outlet 60m below the watersurfacedetermine the velocity of the water after it
water moves into a pipe of cross sectional area 05m2 at a rate of10ms at a pressure of 10000kpadetermine the mass rate
a solar cell generates a potential difference of 1 v when a 500 ohm resistor is connected across it and a potential
the front and rear sprockets on a bicycle have radii of 900 and510 cm respectively the angular speed of the front
a boy whirls a stonein a horizontal circle 16 m above the ground by means of a string14 m long the angle between the
a person is riding a bicycle and its wheels have an angularvelocity of 245rads then the brakes are applied and the bike
two loud speakers face each other vibrate in phase and produceidentical 451 hz tones a listening walks from one speaker
a car traveling 507 kmh is 219 m from a barrier when the driver slams on the brakes the car hits the barrier 203 slater
1 a car is rounding a curve with a radius of 120 m at 82ms when it hits a slippery patch what is the minimum
the brakes are applied to a car traveling on a dry level highway a typical value for the magnitude of the
three sticks are arranged to forma right triangle if the lenghts of the sticks are 47m 62m and 78m what are the angles
sinusoidal water waves are created 120 km off shore by anearthquake near a small island observers in helicopters above
a ball is dropped from rest from the top of a building of height h at the same instant a second ball is projected
an electric dipole consisting of charges of magnitude 290 ncseparated by 730 mum is in an electric field of strength
calculate a realistic estimate for the temperature at the surface of neptune using the black body radiation formula use
two spheres one with mass m radius r and the other mass 2mradius 3r are released from rest at a distance of 12r between
two 20-cm-diameter insulating spheres have a 530 cmspace between them one sphere is charged to 930 nc theother to -
a model of a red blood cell portrays the cell as a sphericalcapacitor a positively charged liquid sphere of surface
two parallel plate capacitors have circular plates the magnitudeof the charge on these plates is the same however the
an electron and a proton are initially very far apart effectivelyan infinite distance apart they are then brought
the gas inside of a flexible container at 2982 k has apressure of 025 atm the size of the container starts out holding3