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A 100 g cube of ice at 0 degree Celsius is dropped into 1.0kg of water that was originally at 80 degree celsius. What is the final temperature of the water after the ice has melted?
Two asteroids head straight for Earth from the same direction. Their speeds relative to Earth are 0.79c for asteroid 1 and 0.60c for asteroid 2. Find the speed of asteroid 1 relative to asteroid 2.
The potential in a region between x = 0 andx = 6.00 m is V = a + bx wherea = 15.0 V and b =-5.00 V/m.Determine the potential at x =0. Determine the potential at x = 3.00 m.
An ice cube of mass ma and specific heat Ci is initially at temperature T1, where T1 is less than 273K. If L is the latent heat of fusion of water, and the specific heat of water is Cw, how much energy is needed to convert the ice cube to water at ..
A window washer is climbing up a ladder to wash a window. The end of the 10.5 foot ladder exactly touches the windowsill, How far off the ground is the windowsill
A gasoline engine absorbs 4190 J of heat and performs 3170 J of mechanical work for each turn of the engine shaft
n undamped 1.47-kg horizontal spring oscillator has a spring constant of 25.1 N/m, What is the oscillator\'s total mechanical energy as it passes through a position that is 0.651 of the amplitude
An electric current in a conductor varies with time according to the expression I(t) 5 100 sin (120pt), What is the total charge passing a given point in the conductor
A sphere with radius 2 cm is placed at a location near a point charge. The sphere has a charge of -9*10^(-10) C spread uniformly over its surface.The electric field due to the point charge has a magnitude of 470 N/C at the center of the sphere. Wh..
A golfer hits a golf ball of mass 0.045kg the ball over some short trees. he hits the ball at an angle of 60 degreed to the horizontal, What is the change in momentum of the golf club
The power of a certain CD player operating at 120V rms is 25.0W . Assuming that the CD player behaves like a pure resistance, find the maximum instantaneous power
A space vehicle is orbiting Earth in the circular orbit with a radius of 10,300,000 m. What is the minimum increase in speed that is essential for the vehicle to escape Earth's gravitational field? The mass of Earth is 5.97 x 10^24 kg and G = 6.67 X ..
The helium atom has a volume of about 3x10^(-30) m^3. What fraction of a volume of helium gas at STP is actually occupied by molecules
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