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1 which of the following is correct about a molecule of carbon trichloridea it has one carbon atom for each chloride
explain why food stays fresh longer when kept in the refrigeratorin the stratospheric level of the atmosphere there is
acetylene gas c2h2 burns in the oxyacetylene torch for welding balance the chemical reaction by placing the proper
the plates of a parallel-plate capacitor are fully charged by a battery and then disconnected from the battery if the
the circuit in the diagram consists of two identical 50 ohm resistors a 100 micro f capacitor and a battery that
a spring of spring constant k30 nm has a mass od 2kg on its end and is hung vertically it is pulled 20 cm below its
a resistor an uncharged capacitor a dc voltage source and an open switch are all connected in series the switch is
an electric field is set up in a labroratory pointing into the positive direction with a magnitude of 1000 nc if you
the temperature of a gas is increased from 150k to 600k in a balloon if pressure is kept constant how does the colume
a 181g oscillator has a speed of 1170cms when its displacement is 250cm and 565cms when its displacement is 670cmwhat
light of wavelength 6330 nm is incident on a narrow slit the diffraction pattern is viewed on a screen 775 cm from the
a steel cable with total length 25 m and mass 120 kg is connected to two poles the tension in the cable is 3097 n and
a 78 g bullet moves horizontally with speed of 200 ms and embeds in a 17 kg block resting on a horizontal surface
a pipe 028 meters long and capped at one end exists in a room where the speed of sound is 350 ms determine the three
a wooden block of mass m 9 kg starts from rest on an inclined plane sloped at an angle theta from the horizontal the
two mountain climbers are working their way up a glacier when one falls into a crevasse figure below the icy slope
a 40-cm-diameter parallel-plate capacitor has a 054 mm gap what is the displacement current in the capacitor if the
a wire bearing current of 125 a crosses a region in which there is a uniform b field in the y direction the wire is
you drop a 289-g silver figure of a polar bear into the 251-g aluminum cup of a well-insulated calorimeter containing
a base on planet x fires a missile toward an oncoming space fighter the missiles speed according to the base is 080 c
an ice bag containing 0degc ice is much more effective in absorbing heat than one containing the same amount of 0degc
imagine holding the above plastic block under water when released what is the upward acceleration of the block use g
a string with a mass m 500 g and a length l 700 m has one end attached to a wall the other end is draped over a small
using a 677-nm wavelength laser you form the diffraction pattern of a 0115-mm wide slit on a screen you measure on the
rod cells in the retina of the eye detect light using a photopigment called rhodopsin suppose that 211 ev is the lowest