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What safety precautions should be taken? Give reasons for your answer. critically analyse any faults that could occur in the experiment of titration and suggest ways of improvement.
A 715 kg car moving at 28 m/s brakes to a stop. The brakes contain about 17 kg of iron that absorb the energy. What is the increase in temperature of the brakes
A cat is running at 8.0 m/s and trying to catch a mouse, who has a tenth of the mass of the cat. What is the speed of the mouse
A person slowly lowers a 3.6 Kg crab trap over the side of a dock, What torque does the trap exert about the person's shoulder
Supermassive black holes are thought to exist at the center of many galaxies.
A container holds 2.9 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 8.1x10-3 kg bullet with a speed of 750 m/s
Water flows in a 2-cm-diameter pipe at 10 m=s vertically upward to the center of two horizontal circular disks separated by 8 mm. It flows out between the disks at a radius of 25 cm. Sketch the pipe/disk arrangement. Calculate average velocity of ..
You stick two blocks together with Velcro. The manufacturer rated the Velcro as needing a force of 50N to separate the side you are using when applied to solid surfaces. Find the maximum possible amplitude of oscillation at which the blocks will ho..
A 50.0kg pole vaulter running at 10.0m/s vaults over the bar. Assume that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was the jump.
A hiker walks along the city streets 7 km north, then 4 km east. What is the magnitude of the resulting displacement vector?
a student calculates the unknown liquid to have a density of 0.87 gcm3. if the class average for the density of the
a generator at hoover dam can supply 396 mw of electrical power. assume that the turbine and the generator are 83.1
Sodium ions (Na+) move at 0.843 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
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