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the temperature of a gas is held constant whereas its volume is reduced the pressure the gas exerts on the walls of its container enhances
while travelling in a straight line a car uniformly alters its speed from 50 kilometres per hour to 110 kilometres per hour in 5 seconds the
an object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth if the acceleration because of gravity is 10 meters
a proton and an alpha particle pass by the gap of a strong magnet if both particles have the similar initial velocity how many times greater will
photoelectric electricity is produced directly from solar energy when which following are absorbed in a semiconductor to create an electric
assume a crane lifts a 900 kilogram wrecking ball 12 meters above a concrete slab 105840 joules of potential energy are kept in the wrecking
what is a caloriea amount of heat needed to raise one gram of water one degree celsiusb amount of work needed to move one gram of water by
an object located four focal lengths in front of a thin converging lens is moved to within two focal lengths of the lens as a result does the
a 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes by a pulley attached to the shops ceiling neglecting the
the doppler effect shows that the spectrum of light from a visible body moving away from the earth will experience a shift in frequency when viewed
gauss law of magnetism gauss law of electricityfaradays law of induction and amperes law form the basic equations of electromagnetism this
an air dielectric is changed with a glass dielectric inside a capacitor of fixed dimensions relatively speaking what will occur to the quantity
a 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second if she bends down and scoops up a 20 kilogram child
an explorer is riding his camel in the desert up ahead he sees what appears to be a pool of water he can tell if it is a real pool of water or a
hiker stands at the bottom of steep hill the hiker may follow a straight line path to the top of the hill a distance of 300 feet or she may
an aluminum rod at a temperature of 100o celsius radiates energy at a rate of 10 watts if its temperature is enhanced to 200o celsius at
to develop the correct mathematical explanation of the distribution of radiated energy of a blackbody with respect to wavelength for a given
in rutherfords experiment including the deflection of alpha particles by atomic nuclei the fact that some of the alpha particles bombarding the thin
when a certain beam of light falls upon a metal surface it ejects photoelectrons from it the number of photoelectrons ejected per second by the
a capacitor and a coil are linked in series the capacitor is charged and allowed to discharge by the coil the current that will then flow by the
in the mass spectrograph two positively charged ions having the similar velocity pass through a slit and enter a uniform magnetic field at right
an electron and a proton are moving at the similar speed in circular paths in the similar uniform magnetic field the radius of the path of the
a high voltage applied to a gas discharge tube having neon gas at very low pressure causes a current to flow through the tube which particles
a zinc plate is attached to the knob of a negatively charged electroscope what will occur to the leaves of the electroscope when ultraviolet
an 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 newtons per meter if the