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A 7.0 kg box is raised from rest a distance of 3.0 m by a vertical force of 110 N.
A. What is the total work done on the block when the block slides 1.4 m (measured along the incline)?
B. What is the speed of the block after it has slid 2.0 m if it starts from rest?
C. What is its speed after 2.0 m if it starts with an initial speed of 1.7 m/s?
A typical incandescent lightbulb has a filament temperature of approximately 3191 K. At what wavelength is the intensity of the emitted light highest
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On a 7.2 m length of string, you count 5 crests and 4 troughs. What is the wavelength of the waves on the string
A bicycle rim has a diameter of 0.65 m and a moment of inertia, measured about its center, of 0.29kg?m2. What is the mass of the rim
An electron and a positron have masses of 9.11 10-31 kg. They collide and both vanish, determine the energy of the electromagnetic radiation
A point charge is a = 1.5 m below the end of a continuously charged rod with charge Q = 5 ?C, Write an expression for the differential element of the y component of the Electric Field at P in terms of the charge density
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.16 kg. The ball approaches the cushion with a velocity of +1.6 m/s and rebounds with a velocity of ?1.2 m/s
Water has a mass per mole of 18g/mol, and each water molecule (H2O) has 10 electrons.
You pour 108 cm3 of ethanol, at a temperature of -10.0?C, into a graduated cylinder initially at 20.0 ?C, filling it to the very top. What will be the final temperature of the ethanol
Besides the traditional colorimetric acid/base indicators, there is another class that doesn't use color, the olfactory acid-base indicators! These compounds smell or don't smell based on their pH and a lot of them are plant-derived compounds
A tennis player, when performing a serve, applies an average force to a tennis ball of 525 N to a 55 g ball. What is the speed of the ball as it leaves the racket
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