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Two cartons sit next to, and touching, each other on a frictionless horizontal surface. The lighter carton has a mass of 5.28 kilogram and the heavier carton has a mass of 7.44 kilogram.
(a) Calculate the contact force between these cartons when a horizontal force of 5.2 N is applied to the light carton.
(b) Verify your answer to part (b) by calculating the contact force in this case.
A submarine dives 90.0 m at an angle of 8.0° below the horizontal. What are the horizontal and vertical components of submarine's displacement? (Imagine that upward and the direction of the submarine's horizontal motion is positive.)
A helium filled ballon at atmospheric pressure is tied to a 3.0 m long, 40g string. The ballon is spherical with mass 0.25 and radius 0.40 m. When released, it lifts a lengh (h) of the string, and then remais in equilibrium.
A beam of light is incident in air with an incident angle 56 degrees. calculate the index of refraction of this unknown liquid
An electron is in an angular momentum state with l=3, What is the lenght of the electron's angular momentum vector
Ideally, when a thermometer is used to measure the temperature of an object, the temperature of the object itself should not change. What was the temperature of the water before the insertion of the thermometer
Three equal point charges, each with charge 1.95 , are placed at the vertices of an equilateral triangle whose sides are of length 0.400 . What is an electric potential energy of the system? (Take as zero the potential energy of the three charges ..
In 1911, Ernest Rutherford discovered the nucleus of the atom by observing the scattering of helium nuclei from gold nuclei. If a helium nucleus with a mass of 6.68 10-27 kg.
To fill a child's inflatable wading pool, you use a garden hose with a diameter of 2.90 cm. Water flows from this hose with a speed of 1.50 m/s. How long will it take to fill the pool to a depth of 25.0 cm if the pool is circular and has the diame..
Placing an object in a beaker filled with water causes displacement of some water. Calcualte the buoyant force on the object
A wind turbine with a rotor diameter of 50 m is rated at Y kW at a hub height wind speed of m/s. It has a cut-in wind speed of m/s and a cut-out speed of m/s.
A spider hangs from a strand of silk whose radius is5.8x10-6 m. The density of the silk is 1100kg/m3. When the spider moves, waves travel along thestrand of silk at a speed of 310 m/s. Determine the mass of the spider.
A potters wheel is a disk of mass 3.50kg and radius .450m and is spinning freely around a vertical axis through its center with an angular speed of 14.0rad/s. what is the angular speed of the wheel+clay
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