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A certain bivalent metal has a density of 6.458 g/cm3 and a molar mass of 92.8 g/mol. Calculate the number density of conduction electrons
Two particles are fixed to an x axis: particle 1 of charge -4.00 10-7 C at x = 6.00 cm, and particle 2 of charge +4.00 10-7 C at x = 42.0 cm
A car travels with an initial velocity of 2 meters per second, at initial position of 0 meters with an accerleration of 2 meters per second at time of 2.0 seconds
If the hanging 13.8 kg block falls a distance 0.633 m before coming to rest, calculate the coefficient of kinetic friction between the block m1 and the surface
Two kids of masses 45 kg and 30 kg sit on the opposite sides of a seesaw. The 45 kg kid sits in the left at a distance of 54 cm from a frictionless axle. determine The force that the axle must exert
at is the pH of this new solution. Assume no volume change after NaOH(s) was added. Molar Mass NaOH= 39.998 g/mol. Answer given was pH = 13.52, What are the steps to get here
A wheel is mounted on a stationary axle which we can assume frictionless. As a result, the wheel can turn freely but cannot translate. How much work is done by you on the pulling
A toy is made with three equal masses of 100 grams in the vertices of an equilateral triangle of side 7 cm. Determine the position of the center of mass of this object
A sample of 0.05567 mole sodium acetate was dissolved into 150.0 mL of water. If 2.00g of NaOH(s) was added to the solution and allowed to dissolve
Use the semi-infinite-well potential to model a deuteron, a nucleus consisting of a neutron and a proton. How many excited states are there
If we assume the ice is perfectly slick (that is, no friction between the crewman and the ice once he slips and falls down), At what speed will the crewman hit the bottom of the ravine
photosynthesis in plants generate sugars such as glucose (C6H12O6) and oxygen from carbon dioxide and water. how many kilograms of oxygen are produced from photosynthesis of 330 kg of carbon dioxide
Photosynthesis in plants generate sugars such as glucose (C6H12O6) and oxygen from carbon dioxide and water. how many kilograms of oxygen are produced from photosynthesis of 330 kg of carbon dioxide
Four identical particles of mass 0.608 kg each are placed at the vertices of a 4.08 m x 4.08 m square and held there by four massless rods, What is the rotational inertia of this rigid body
If, in actuality, a 750 kg car with an initial speed of 96.0 km/h is observed to coast up a hill to a height of 17.0 m above its starting point, how much thermal energy was generated by friction
A photon having E = 12.5 keV energy scatters from a free electron inside a metal. At which angle will the electron scatter
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the
A rail car that weighs 34 N is accelerated at 8.3 m/s/s for 5.9 seconds. How much work is done on the rail car? The acceleration is constant
A 232 kg cart runs into the rear end of a 102 kg cart that is stationary. What is the speed of the moving cart before the collision
Consider a capacitor consisting of two identical metal plates parallel to each other. Each plate has an area of 140 cm2 and they are separated by 2.7 mm. Find the capacitance of the capacitor
Mary and her younger brother Alex decide to ride the carousel at the State Fair. What is Mary's angular speed %u03C9M and tangential speed vM
Mercury is poured into a U-tube. The left arm of the tube has cross-sectional area A1 of 10.4 cm2, Determine the length of the water column in the right arm of the U-tube
When a potential difference of 2 V is applied across the ends of a wire of 5 m length, a current of 1A is found to flow through it. Calculate: the resistance per unit length of the wire
A ball rolls off a platform that is 6.8 meters above the ground. The ball's horizontal velocity as it leaves the platform is 7.4 m/s.How much time does it take for the ball to hit the ground