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In the movie The Gods Must be crazy, a bottle is thrown from a cliff overlooking the Indian Ocean. If the cliff is 0.5 kilogram high, and the bottle is thrown horizontally ay an initial speed of 10 meter per second, find what are the bottle position and velocity 0.5 later? Ignoring effects of air resistance, compute the distance from the bottom of the cliff at which the bottle hits the water. Compute its velocity just before impact.
two cylindrical resistors are made of the same material. the resistors with resistance r1 and r2 have different radii
a one pound weight is released 3 feet off the ground. at the same time a two pound weight is released 5 feet off the
A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 4.4 s later. If the speed of sound is 340 m/s, how high is the cliff
question1a curve of radius 160 m is banked at an angle of 11deg. an 808-kg car negotiates the curve at 88 kmh without
The weight of a block of metal is measured with a scale first in air, then in water. Find the specific gravity of the metal ( the ratio of the density of metal to the density of water). The tension of the block is measured 6.0N in air and 4.0N in wa..
light is incident on an equilateral glass prism at a 45 degree angle to one face. calculate the angle at which light
A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 4.1 rad/s; 45 radians later, its angular speed is 16 rad/s. Calculate (a) the angular acceleration (rad/s2), (b..
A 1.56m tall student stands before a vertical mirror. She can just see her whole body, from head to toe. How tall is the mirror
Two stationary positive point charges, charge 1 of magnitude 3.50 nC and charge 2 of magnitude 1.50 nC , are separated by a distance of 31.0 cm. What is the speed (Vfinal) of the electron when it is 10.0 cm from charge 1
A source emits sound of wavelength 2.54m an 2.74m in air. Use the speed of sound=343m/s. a) Write the equations of these two traveling waves in complex exponential notation as a function of wave speed and number.
A car of mass 1500 kg rounds a circular turn of radius 27meter. how fast can thecar travel without skidding
At t=0, the displacement x(0) of a block attached to a spring is -850 cm. The block's velocity v(0) is then -.920m/s, what is the abgular frequency of this system
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