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A simple pendulum of length 20 cm and mass 5.0 g is suspended in a race car travelling by a constant speed 70 m/s around a circle of radius 50 m. If the pendulum undergoes small oscillations in a radial direction about its equilibrium position, what is the frequency of oscillation?
In a certain solar house, energy from the Sun is stored in barrels filled with water. In a particular winter stretch of five cloudy days, 1.37 x 106 kcal is needed to maintain the inside of the house at 22.4oC. what volume of water is required
A jeweler working with a heated 43 gram gold ring must lower the ring's temperature t make it safe to handle. If the ring is initially at 94 degrees Celsius, what mass of water at 22 degrees Celsius is necessary to lower the ring's temperature to 38 ..
A charge q = 5.6 μC is placed at the origin, and asecond charge q = -4.2 μC is placed at x = 1m. find the electric potential midway between the two charges
A comet has a very elliptical orbit with a period of 123.0 years. what is its greatest distance from the Sun in AU
The eyepiece of a refracting telescope (see Fig.34.53 in the textbook) has a focal length of 9.00 cm. What is the angular magnification of the telescope
A small ball is attached to one end of a spring that has as an unstrained length of .200m. The spring is held by the other end, and the ball is whirled around a horizontal circle at a speed of 3.00 m/s. The spring remains nearly parallel to the gr..
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. What is the flux that passes through the circular loop
A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32m high. Assuming that air resistance can be ignored, find the initial speed of the rock
If a metric ton is 1 x10^3 kg, how many 88 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton.
The flywheel of an automobile engine is a solid disk with a mass of 8.6 kilogram and a radius of 20 centimeter and is rotating at 3850 rpm. determine to what height would the flywheel be lifted
after struggling to remove a refrigerator mass 100 kg. you finally apply enough force to get it moving. what is the
a liter of air initially at room temperature and atmospheric pressure is heated at constant pressure until it doubles
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