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2.28 kg of water are changed from ice at 0°C into liquid water at 0°C. The latent heat of fusion for water is Lf = 33.5 × 104 J/kg, and the speed of light in a vacuum is c = 3.00 × 108 m/s. Determine the change in the mass of the water.
Some nucleus of 74X189 (atomic mass = 188.96191 u) undergoes - decay to become 75X189 (atomic mass = 188.95922 u). What is the energy (in MeV) released in this process
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
Car traveling east at 40m÷s passes atrooper hiding at the roadside.the driver uniformly reduces his speed to 25m÷s in3,5s....what the magnitude and direction of the car acceleratioas it slow down.
Now the gymnast (not holding any additional mass) walks directly above the right support. What is the force the left support exerts on the beam
A 35-mm slide (picture size is actually 24 by 36 {mm) is to be projected on a screen 2.10 m by 3.15 m placed 5.30 m from the projector. What focal-length lens should be used if the image is to cover the screen? Answer to be in mm please.
Three point charges, -5.85*10-9 C, -9.20*10-9 C, and +7.20*10-9 C, are fixed at different positionson a circle. The total electric potential at the center of thecircle is -2150 V. What is the radius of the circle?
The density of ice is 917 kg/m^3, and the density of sea water is 1025 kg/m^3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m^3. What is the weight of the heaviest bear that the ice can support without sinking com..
Using the periodic boundary condition, ?k(x+L) = ?k(x) and noting that e(i2pn)=1, determine the allowed values of k in terms of L and an integer n. Are negative values of n allowed?
A simple 1.3m long pendulum oscillates at a location where g=9.81. How many complete oscillations does it make in 4.00min
Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 7.0 g.Silver has 47 electrons per atom, and its molar mass is 107.87g/mole.
Sewage at a certain pumping station is raised vertically by 5.43 m at the rate of 1 860 000 liters each day. The sewage, of density 1 050 kg/m3, Find the output mechanical power of the lift station
Given that the carbon atom has a mass of 12 amu, how many carbon atoms are there in a diamond with a mass of 8 g
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