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A 2 kg block is taken from a furnace where its temperature was 650 degree C and placed on a large block of ice at 0 degree C. Assuming that all the heat given up by the iron is used to melt the ice, how much ice is melted?
A cord passes over a weightless and frictionless pulley. Masses of 200 and 300 grams are attached to the ends of the cord. Find the distance the masses will move during the fifth second after they had started.
if the sea level pressure of the atmosphere is 92.1 bars, and the density is 65.5 kg/m^3 what is the equilibrium temperature
A 40.0-N crate starting at rest slides down a rough 6.00-m-long ramp, inclined at 30.0° with the horizontal. What is the speed of the crate at the bottom of the incline
The critical angle for total internal reflection at a liquid-air interface is 40.0. If a ray of light traveling in the liquid has an angle of incidence at the interface of 38.0, what angle does the refracted ray in the air make with the normal
A stone is thrown outward from the top of a 59.4m high cliff with an upward velocity component of 19.5 m/s. How long is the stone in the air
Two identical diverging lenses are separated by 15 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right
A motor cycle rider moving with an initial velocity of 8.0 m/s uniformly accelerates to a speed of 17 m/s in a distance of 30m. And how long does this take
A 0.100g plastic bead is charged by the addition of 1 x10^10 excess electrons (i.e. so the bead becomes negatively charged). What electric field (magnitude and direction) will cause the bead to hang suspended in the air?
Mercury is approximately a sphere of radius 2.43 x 106 m. What is its circumference in kilometers and What is its surface area in square kilometers
A 15 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. what was the muzzle speed of the bullet
The current-density magnitude in a certain circular wire is J = (2.75 × 10^10 A/m^4) r^2, where r is the radial distance out to the wire's radius of 3.00 mm. The potential applied to the wire (end to end) is 60.0 V. How much energy is converted to th..
The speed of sound in air is around345 m/s. What is the wavelength (in cm) of the sound waves in the tube
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