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A bird watcher meanders through the woods, walking 0.375 km due east, 1.19 km due south, and 2.48 km in a direction 48.9 ° north of west. The time required for this trip is 1.599 h. Determine the magnitudes of the bird watcher's
(a) displacement and
(b) average velocity.
q1. a scuba tank is filled with air to a pressure of 292 atm when the air temperature is 23 degrees celcius. a diver
A small, 300g cart is moving at 1.90m/s on an air track when it collides with a larger, 5.00kg cart at rest. What is the speed of the large cart after the collision
The equation of mothionof a SHM oscillator is x= (.50m) sin(2pi f)t, where x is in meters and t is in seconds. what is the frequency of the oscillator?
If a curve with a radius of 87 is perfectly banked for a car traveling 67 , illustrate what must be the coefficient of static friction for a car not to skid when traveling at 84 ?
Four rays of light are incident on a surface of water. Their angles of incidence are 20, 30, 45, y 60 degrees. Calculate the angle of refraction for each ray
A uniform disk with a mass of 875 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
A 1000kg truck is driving up a 10 degree slope. A 10g ornament hangs by a massless string from the rear-view mirror in truck.
A parallel plate capacitor of capacitance 7.6 µF has the space between the plates filled with a slab of glass with ? = 3.2. Find the charge on the plates after the glass is removed
A 23 kg boom of length 6 m is supported by a cable that has a breaking tension of 1200N. The cable is perpendicular to the boom and is attached 4.5m from the pivot. What is the utmost load that can be suspended from the end of the boom.
A 1500 kg car is approaching the intersection at 11 m/s. He is 40 m away from the intersection. Find the minimum acceleration needed for the car to come to rest
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0°C and rejects heat to a room at 22.5°C. How much heat is discharged into the room
Sources A and B emit long-range radio waves of wavelength 440 m, What is the magnitude of the phase difference at the detector
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