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The 1.5 kg ball is pulled back to a height of 0.7 m above its hanging position and then allowed to swing back down toward the 1.1 kg ball. a) Calculate the period of oscillation of the 1.5 kg ball i
Now from the origin draw vectors to represent both the initial and final positions and a vector that gives the displacement vector.
How would you prepare 2.0 Liters of 0.20 M NaOH solution from50% (w/w) NaOH solution that has a density of 1.53 g/mL? All measurements must be by volume and not mass.
A charge of 120 µC is at the center of a cube of edge 80.0 cm. No other charges are nearby. (a) Find the total flux through each face of the cube. (b) Find the flux through the whole surface of
Lithium iodide has a lattice energy of -730 kJ/mol and a heat ofhydration of -793 kJ/mol. Determine how much heat is evolvedor absorbed when 15.0 g of lithium iodide completely dissolves in water.
A police officer is driving due north at a constant speed of22 m/s relative to the ground when she notices a truck on the east-west highway ahead of her, driving we stat a high speed.
If the capillaries of an average adult were unwound and spread out end to end, they would extend to a length over 40 000 mi. If you are 1.65 m tall, how many times your height would the capillary le
When a standing wave exists on a string, the vibrations of incident and reflected waves cancel at the nodes. What does this mean? Is the energy destroyed?
A small ball rolls horizontally off the edge of a tabletop of height h. It strikes the floor a distance x horizontally away from the edge of the table. (a) How long is the ball in the air? (b) What
How do the moles of CO2 and carbonate mass reactant permit you to identify an unknown monovalent or divalent cation ofan unknown carbonate.
At what horizontal distance from the firing point does it strike the ground? What is the magnitude of the vertical component of its velocity as it strikes the ground?
In the reaction of liquidmercury and oxygen to form mercury(II) oxide, what is the mass ofHgO produced from the reaction of 0.200 mol of liquid mercury and4.00g of oxygen gas?
(a) Does the ball clear a 8.91-m-high fence that is 101 m horizontally from the launch point? (b) At the fence, what is the distance between the fence top and the ball center?
How much larger would be the total inventory of water on Earth ifsome of it had not been consumed by photosynthesis to producemolecular oxygen?
The reaction below was allowed to proceed to equilibrium. Thecontents of a 2 liter reaction vessel were then subjected toanalysis and found to contain 1.0 mole of H2S, 0.20 moleH2, and 0.80 mole S2.
An Earth satellite moves in a circular orbit 915 km above Earth's surface with a period of 103.1 min. What are (a) the speed and (b) the magnitude of the centripetal acceleration of the satellite?
What is the (a) magnitude and (b) direction of the boat's velocity relative to the ground? Give the direction as the angle of the velocity from due north, positive if to the east and negative if to
If each ofthese water molecules were enlarged to the the size of a billiardball (2.25 inches in diameter ) were stacked side-by-side on afootball field using only the in bounds area (120.00 yards by
An astronaut is rotated in a horizontal centrifuge at a radius of 7.5 m. (a) What is the astronaut's speed if the centripetal acceleration has a magnitude of 5.6g? (b) How many revolutions per minut
A jogger runs 100 m due west, then changes direction for the second leg of the run. At the end of the run, she is 175 m away from the starting point at an angle of 15.0 degrees north of west. What w
Calculate the mass of silver chloride, AgCl, and dihydrogen monosulfide, H2S, formed when 85.6 g of silver sulfide, Ag2S, reacts with excess hydrochloric acid, HCl.
A 1600 kg car is pulling a 375 kg trailer. Together, the car and trailer have an acceleration of 2.15 m/s2 directly forward. (a) Determine the net force on the car.
Protein A has a binding site for glucose with a Kd of 10-5M.Protein B has a binding site for glucose with a Kd of 10-7 M. Which protein has a higher affinity for glucose? Explain your reasoning.Als
A golf ball is dropped from rest from a height of 9.30 m. It hits the pavement, then bounces back up, rising just 5.80 m before falling back down again. A boy then catches the ball when it is 1.00 m
A Person stands at the base of a hill that is a straight incline making an angle phi with the horizontal. For a given initial speed v0, at what angle theta should objects e thrown so that the distan