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150g of steam at 100c 373k is injected into a container containing 250g of ice and 150g water both at 0c 273k c water
the horizontal and vertical components of the initial velocity of a football are 20ms and 30ms respectively assume that
a 2kg piece of ice 0c 273k is placed in 27c 300k body of water latent heat of fusion is 334kjkg what is the work
a resistor with 325 and an inductor are connected in series across an ac source that has voltage amplitude 520v the
a sinusoidal electromagnetic wave from a radio station passes perpendicularly through an open window that has area of
a conductor in the shape of a spherical shell of radii 25cm is charged to 20 microcoloumbs this conductor is situated
the prong of the tuning fork moves back and forth when it is set into vibration the distance the pron moves between its
what is the gravitational force between two 20 kg iron balls separated by a distance of 05m the gravitational constant
a space station is moving in a circular orbit around the earth it makes one revolution in 90 minutes how high above the
a roller coaster starts from rest at the top of an 18m hill the car travels to the bottom of the hill and continues up
the intensity of sunlight that reaches earths amosphere is 1400 wm2 what is the intensity of sunlight that reaches a
a water line with an internal radius of 506 x 10-3 m is connected to a shower head that has 12 holes the speed of the
a string length 20 m and linear mass density 250 mgm vibrates at a fundamental frequency of 4500 hz what is the speed
a fountain sends a stream of water straight up into the air to a maximum height of 422 m the effective area of the pipe
a rock is thrown off a 800 m limestone cliff at an angle of 38 degrees below the horizontal with an intitial velocity
a 4000 liter container is filled to the brim with ethanol at 200 degc the container is heated to 300 degc as a result
1 a constant-pressure insulated piston-cylinder device contains 17 kg of saturated liquid-vapor mixture of water at 150
two spherical objects have a combined mass of 190 kg the gravitational attraction between them is 826times106 n when
the distance from the earth to the center of our galaxy is about 23000ly1yr is 947x1015m as measured by an earth based
a 500 kg box is pushed a distance of 150 m up a rough 200 degree incline with a constant force of 350 n the
suppose an object is placed 6 cm in front of a lens that has a focal length of 4 cm where is the image located what are
a car at the indianapolis-500 accelerates uniformly from the pit area going from rest to 285 kmh in a semicircular arc
the electric field of a sinusoidal electromagnetic wave obeys the equation
in a hydrogen atom the electron makes a transition from the n 7 to the n 2 state what is the wavelength of the
on a cold day a heat pump absorbs heat from the outside air at 14degf -10degc and transfers it into a home at a