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A 2,021-kg car is moving down a road with a slope (grade) of 13% while slowing down at a rate of 3.4 m/s^2. What is the direction and magnitude of the frictional force? (define positive in the forward direction, i.e., down the slope)?
An analysis of each gas and their mole percent from the analysis of a flue gas is given below: Determine the average molecular weight of the flue gas.
A simple pendulum on the surface of Earth is found to undergo 13.0 complete small-amplitude oscillations in 7.05 s
A bicycle wheel of radius 0.50 m is rolling without slipping on a horizontal surface with an angular speed of 3pie rad/s when the cyclist begins to uniformly apply the breaks. find the initial tangential velocity of the bicycle wheel
A 1.6kg chicken is blown into a wall by a strong gust of wind, Which direction is the frictional force
Physicians use electroencephalograms (EEGs) to study electrical oscillations in the human brain. So-called beta oscillations, whose enhancement has been linked to alcoholism, have frequencies from 12 to 30 Hz . What's the corresponding range in perio..
A bicycle with a mass of 20 kg drives over a semi-circular of radius 18.2 meters. what is the radius of the hill in meters
Sodium light (589.3 nm) from a narrow slit illuminates a Fresnel bi-prism made of glass of refraction index 1.5. What is the biprism angle
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons, while a nitrogen-14 nucleus comprises seven protons and seven neutrons.
A nonreflective coating (n = 1.31) covers the glass (n = 1.52) of a camera lens. determine the minimum nonzero thickness that the coating can have
The temperature of 3.25 mol of an ideal diatomic gas is increased by 23.5 ?C without the pressure of the gas changing. By how much does the rotational kinetic energy of the gas increase
A beaker with a capacity of exactly 100mL contains 99.7mL of ethanol at 26degrees C. Part A If its temperature rises, at what temperature will it overflow
A 5* 10^2 kg hot air balloon takes off from rest at the surface of the earth. The non conservative wind and lift forces take the balloon up, doing +9.70*10^4J of work on the balloon in the process. At what height above the surface of earth does th..
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