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A cab driver picks up a customer and delivers her 2.80 km away, driving a straight route. The driver accelerates to the speed limit and, upon reaching it, begins to decelerate immediately. The magni
A 57-kg block is suspended from a uniform chain that is hanging from the ceiling. The mass of the chain itself is 22 kg, and the length of the chain is 1.5 m. (a) Determine the tension in the chain
Suppose such an accelerometer is attached to point P on the ceiling of an automobile traveling in a straight line on a flat surface at constant acceleration. Due to the acceleration, the string will
A plane flies from base camp to lake A, a distance of 200 km at a direction of 20.0° north of east. After dropping off supplies, the plane flies to lake B, which is 170 km and 30.0° west of
A seagull flies at a velocity of 11.00 m/s straight into the wind. If it takes the bird 19.0 min to travel 6.00 km relative to the earth, what is the velocity of the wind?
A major-league pitcher can throw a ball in excess of 35.3 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 17.0 m away from the poi
A peregrine falcon dives at a pigeon. The falcon starts downward from rest and falls with free-fall acceleration. If the pigeon is 83.5 m below the initial position of the falcon, how long does it t
The distances shown in the drawing are rSM = 1.5 1011 m and rEM = 3.85 108 m. Determine the magnitude of the net gravitational force on the moon.
Can this plane land on a small tropical island airport where the runway is 0.800 km long? What is the actual minimum distance needed to stop the plane?
A solid cylindrical disk has a radius of 0.12 m. It is mounted to an axle that is perpendicular to the circular end at its center. When a 47-N force is applied tangentially to the disk, perpendicula
Two satellites are in circular orbits around Jupiter. One, with orbital radius r, makes one revolution every 16 h. The other satellite has orbital radius 3.8r. How long does the second satellite tak
A battery with an emf of 1.50 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 1.40 V and the current is 0.10 A. What is the value of the external resistor R?
If 18.2 mL of 0.800 M~rm HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
The same man in the example is still in the elevator weighing the same fish, after measuring a weight of 50 N before entering the elevator. During what part(s) of the travel does the scale register
How many kilograms of chalcopyrite must be mined to obtain 360. g of pure rm Cu?
An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). What is the velocity (magnitude and direction) of the plane relati
What is the density of NH3 (3 is a superscript) at 800 torr and 20 degrees C?
A steel cylinder is filled with 5.75 mol of nitrogen at 22degrees Celcius. The volume of the cyclinder is 18.4 L Calculate pressure inside the cylinder
(a) Calculate the frequency of the damped oscillation. (b) By what percentage does the amplitude of the oscillation decrease in each cycle? (c) Find the time interval that ellapses while the energy
A 91.0-kg person stands on a scale in an elevator. What is the apparent weight in each of the following situations? (a) when the elevator is accelerating upward with an acceleration of 1.30 m/s2
An elastic cord is 74 cm long when a weight of 70 N hangs from it but is 85 cm long when a weight of 200 N hangs from it? What is the spring constant of the elastic cord?
What is the molarity of a solution of vinegar that is 5.00 % by mass acetic acid (CH3CO2H) and has a density of 1.01 g/mL?
When M2S3(s) is heated in air, it is converted to MO2(s). A 4.200-g sample of M2S3(s) shows a decrease in mass of 0.215 g when it is heated in air. What is the average atomic mass of M?
When M2S3(s) is heated in air, it is converted to MO2(s). A 4.500-g sample of M2S3(s) shows a decrease in mass of 0.209 g when it is heated in air. What is the average atomic mass of M?