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a man walks 80 miles east then 50 miles south then 30miles westa determine what is the total distanceb determine what
a motor is designed to operate on 136 volt and draws a current of 122 amp when it first starts up at its normal
if an ice skater spins on perfectly frictionless ice and pulls in her arms she reduces her moment of inertia by a
a spaceship is traveling with a velocity of 3250 ms suddenly the rockets are fired and the spaceship begins to speed up
a ball is thrown vertically up with a speed of 30 ms find its maximum height and the time taken in getting
what is the relationship between the heat of fusion of a solid and the amount of heat needed to melt
a disk with evenly spaced holes along the edge turns such that a light which travels through one hole reflects of a
a biologist is investigating the behavior of 2 ants alfredo and bernice the graph below shows the position of the ants
1 two identical charges each -800 x 10-5c are separated by a distance of 250 cm 2 what is the electric force exerted
1 would the mass density of an object be the same if the object were on the moon rather than on the earth would the
the electric potential at the center of a square is -2v when a charge of -q is located at one of the squares corner
a closed system consists of 4 objects initially object a has a charge of -200 c object b has a charge of 134 c object c
discuss the humidity in an air conditioned room and in a heated room in the winter why must we use a humidifier and
a projectile is launched at 15ms at an angle of 30 degrees above the horizontal from the edge of a cliff if the
four lawn sprinkler heads are fed by a 19 cm diameter pipe the water comes out of the heads at an angle of 33deg to the
an lc circuit has a 100 mh inductor the current has its maximum value of 0600 a at t 0 sa short time later the
an ideal heat engine with a carnot efficiency of 389 takes in heat from a high-temperature reservoir at 155oc what is
a new material is found to be superconducting below 116 k how much resistance will a 40 mm long sample of this material
an insect that is 590 mm long is placed 115 cm from a converging lens with a focal length of 120 cmthe position of the
a solenoid of radius a and n wiresmeter has a current which increases from 0 at a rate of kdidta what is the magnetic
the free-fall acceleration at the surface of planet 1is14 ms2 the radius and the mass of planet 2 are twice those of
a thin film of soap with n 139 hanging in the air reflects dominantly red light with lambda 651 nm1 what is the
note the molar mass of he is 4 gmol report temperature in kelvin and speed in ms boltzmannrsquos constant is
two long parallel straight wires are 0300 m apart and each carries a current of 270 a in the same direction compute the
light of wavelength 579 nm shines down on two glass plates spaced at one end with a thin piece of paper looking down on