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On top of Mount Everest, the temperature is -19 oC in July. Being a physicist, you determine by how many degrees Celsius one needs to change the air temperature to double the average kinetic energy of its molecules.
In a classroom demonstration, a 79.2-kg physics professor lies on a "bed of nails." what is the average pressure at each contact
A sound source approximated as a point radiates sound equally in all directions. What is the total power of the source
two workers hold a heavy pail. its mass is unknown. one worker exerts a 220n force at 137 degrees from vertical. the
Find the closest distance an alpha particle of kinetic energy 5.0MeV can approach a bare gold nucleus, What is its kinetic energy in eV when it is expelled to infinity
An open-tube mercury manometer is used to measure the pressure in an oxygen tank. The atmospheric pressure is 1020mbar .1 bar = 105 N/m2. Determine the absolute pressure (in Pa) in the tank
a standing wave is in a open-end tube as shown. the tube legth is L = 1.80m. determine the wavelength of the standing wave
When the brakes of a certain car are applied, a deceleration of 6.0 m/s^2 is produced. How far will it travel in that time
Light propagating in the glass n1= 1.65 wall of an aquarium tank strikes the interior edge of the wall with incidence angle 19.0 degrees . What is the angle of refraction in the water
A circular surface with a radius of .057 m is exposed to a uniform external electric field of magnitude 1.44 x ten to the 4th N/C. The electric flux through the surface is 78N m2/C. What is the angle between the direction of the electric field and th..
A 5 m x 12 m swimming pool slopes linearly from a 1.20 m depth at one end to a 3.40 m depth at the other. What is the mass of water in pool.
A train with a total mass 7.00E+6kg rises 620m as it travels a distance of 91.0 km along a steady slope at a constant speed of 17.0km/hr. The frictional force on the train is 1.400 percent of the weight. Discover the power output of the train engines
question what is the pressure in atmospheres on the body of a diver if he is 34 ft below the surface of the water when
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