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On a workday the average decibel level of a busy street is 65 kb, with 121 cars passing a given point every minute. If the number of cars is reduced to 33 cars every minute on a weekend, what is th
The acceleration of gravity is 9.8 m/s2. If the object's speed reaches one-half its terminal speed in 7.006 s, determine the terminal speed.
What is your displacement after running 2.5 {rm km} on Strawberry Fields, 1.4 {rm km} on Penny Lane, and 4.2 {rm km} on Abbey Road?
A trapeze artist swings in simple harmonic motion with a period of 4.6 s. The acceleration of gravity is 9.81 m/s2 . Calculate the length of the cables support- ing the trapeze. Answer in units of m
In a movie, tarzan is shown evading his captors by hiding underwater for many minutes while breathing through a long thin reed. assuming the masimum pressure difference lungs can manage and still b
A train is traveling up a 4.8^circ incline at a speed of 3.25 m/s when the last car breaks free and begins to coast without friction.
The wind exerts a force of 325 N north on a sailboat, while the water exerts a force of 425 N west on the sailboat. Find the magnitude and direction of the net force on the sailboat
When the spring is released, the mass has an initial, positive acceleration of 10.2 m/s2. What was the displacement of the spring, as measured from equilibrium, before the block was released?
A car is driven 165 km west and then 80 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
A ball on a porch rolls 60 cm to the porch's edge, drops 40 cm, continues rolling on the grass, and eventually stops 80 cm from the porch's edge. What is the magnitude of the ball's total displacem
Suppose an ideal gas is in a container 3 L in volume and allowed to expand by having a piston move. The final volume after the piston moves is 15 L. If the gas is originally at a pressure of 1&time
A driver traveling at 44 km/hr in a school zone can brake to an emergency stop in 3 m. What would be the braking distance if the car were traveling at 62 km/hr?
Suppose a bar 2.5 m long expands 0.8 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated?
Suppose that we suddenly discovered that all these years we'd been wrong about the distance from Earth to the Sun, and it is actually 10% greater than we'd thought. How would that affect our estima
You leave the doctor's office after your annual checkup and recall that you weighed 683 N in her office. You then get into an elevator that, conveniently, has a scale. Find the magnitude and direct
Two ants race across a table 61 cm long. One travels at 5.06 cm/s and the other at 2 cm/s. When the first one crosses the finish line, how far behind is the second one?
Do you agree with IBM's employment response to competition from software development contractors in India, like Wipro, that are expanding into IT consulting services? Why or why not?
A 35 g bullet moving at 475m/s strikes a 2.5kg bag of flour that is on ice , at rest . the bults passes through the bag and exits it at 275m/s . how fast is the bagmoving when the bults exits?
Now suppose that the wavelength of light is 145% larger than the slit separation. How many complete dark fringes would be seen on a distant screen?
A lawn roller is rolled across a lawn by a force of 120 N along the direction of the handle, which is 34.8 above the horizontal. If the lawn roller develops 64.2 W of power for 60 s, what distance
After a heart attack, Mrs. Smith is placed on warfarin (Coumadin), 5 mg a day. What are two important patient education points to tell Mrs. Smith?
Produce a pattern of maxima and minima a distance L away from the slits. What would cause the separation between adjacent minima to decrease?
Determine the normal boiling point of a solvent on a planet whose normal atmospheric pressure is 3 bar
The plane encounters a 58.4 m/s wind from the jet stream, which blows from west to east. What is the maximum distance that the plane can travel due west and just be able to return home?
A photon of wavelength 0.13 nm is incident on a slab of carbon, and its wavelength is shifted by 0.0120% (note: that's not the same as 1.2%). Determine the incoming photon energy in electron volts.