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Consider a conical pendulum that consists of a bob on one end of a string of negligible mass with the other end of the string attached to a point on the ceiling, as shown below. Given the proper push, this pendulum can swing in a circle at a given angle, maintaining the same distance from the ceiling throughout its swing. If the mass of the bob is m, the length of the string is d, and the angle at which it swings is theta, what is the speed v of the mass as it swings? Hint: Find the vertical and inward radial components of the string's tension.
the speed of sound does not depend on the loudness or the frequency of sound. the speed of sound in dry air 0 degree
Determine the wave's amplitude. Determine the wave's wavelength.Determine the wave's frequency.Determine the wave's speed of propagation. Determine the wave's direction of propagation.
if 7.15 ml of 0.101 m naoh solution is required to neutralize 0.178 g of an unknown acid monoprotic-ha what is the
The drag force on an object depends on the dimensionless drag coefficient, the density of air, the object velocity, and the frontal area of the object. By only considering units obtain a relation for the drag force
One gram of water changes from liquid to solid at a constantpressure of 1.00 atm and a constant temperature of 0°C. Find the work done on the water
A tortoise can run with a speed of 0.11 m/s, and a hare can run 20 times as fast. In a race, determine How long does the race take
a total of 8.57middot106 electrons are placed on an initially uncharged wire of length 3.27 m. what is the magnitude of
Two sources emit waves that are in phase with each other. What is the largest wavelength that will give constructive interference at an observation point 161 m from one source
An object whose rotational inertia is 100 kgm2 is subjected to a torque of 20 Nm. During this time, what is its rotational displacement
Electrons in an x-ray machine are accelerated from restthrough a potential difference of 50 000V. what is the kinetic energy of each of these electrons in eV
a spherical drop of water carrying a charge of 90pc has a potential of 270 v at its surface, what is the potential in the new drop
Picture yourself in the castle of Helm’s Deep from the Lord of the Rings. You are on top of the castle wall and are dropping rocks on assorted monsters that are 16.15 m below you. Just when you release a rock, an archer located exactly below you s..
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