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A 22 g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. How much nitrogen evaporates if it is at its boiling point of 77 k and has a latent heat of vaporization of 200 kJ/kg? Assume for simplicity that the specific heat of ice is a constant and is equal to its value near its melting point.
an electron starts from rest 0.05m from the centre of a uniformly charged sphere of radius 0.03m. if the sphere carries
question in a magnetic field with b0.50 t for what path radius will an proton circulate at 0.10 to the speed of light?
In parts of the midwestern United States, sirens sound when a severe storm that may produce a tornado is approaching. What beat frequency does Mandy hear
A spacecraft orbits an unknown planet at a distance of 5.2 x 10^7 m from its center. The period of its orbit is 52 hours. What is the mass of the planet
A uniform 34.5-kg beam of length = 4.95 m is supported by a vertical rope located d = 1.20 m from its left end as in the figure below. The right end of the beam is supported by a vertical column.
A 430 microF capacitor is charged to 245 V. after that a wire is connected between the plates. How many joules of thermal energy are produced as capacitor discharges if all of the energy that was stored goes into heating the wire.
An object starts from rest and undergoes uniform acceleration. During the first second it travels 5.0 m. How far will it travel during the third second
A proton is captured by an oxygen-16 atom which in turns emits a deuteron. find the mass number of the product isotope
an electron q -1.602 x 10-19 c is projected horizontally into the space between two oppositely charged metal plates.
A 4.29-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box, Determine the kinetic frictional force that acts on the box
A 52.1-kg high-school student hangs from an overhead bar with both hands, What is the tension in each arm when the arms make an angle of 31.00 o with respect to the vertical
You have a compound microscope with a barrel of length 161 mm. Find the total angular magnification of the microscope for a person whose near point is 25.0 cm away
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