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Determine the x and y components of the following three vectors in the xy plane.
a) A 15-m displacement vector that makes an angle of 23° clockwise from the +y direction.b) A 25-m/s velocity vector that makes an angle of 41° counter clock wise from the -x direction.c) A 36-lb. force vector that makes an angle of 163° counter clock wise from the -y direction.
In one of the original Doppler experiments a tuba was played on a moving flat train car at a frequency of 75 hz, What beat frequency was heard if the train car approached the station at a soeed of 10m/s
what is the magnitue of the magnetic field in the centre of a solenoid with a current of 1.25 A, Describe the right hand rule for solenoids
In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward.
What is the focal length of this mirror. If the object is 25 cm in front of the mirror, what is the image distance.
Two children setup a "telephone" by placing a long, slender aluminium (Y = 6.9 × 1010 N/m2) bar that has a length of 6.1-m between their two houses. To communicate, the child taps a coded message on one end. How long do the sound waves take to reach ..
A fire hose ejects a stream of water at an angle of 38.3 ° above the horizontal. The water leaves the nozzle with a speed of 29.5 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit t..
The average speed of the atoms in a 1.6 g sample of helium gas is 651 m/s. Estimate the thermal energy of the sample
For nitrogen gas at 35 C calculate the vrms, the vp and the translational kinetic energy
A car with fuzzy dice hanging from the rear view mirror by a single string drives along at a constant 25.0 m/s. If the dice have a mass of 0.030 kg, what is the angle of the string (relative to vertical)
An 9.5 g ice cube at -10°C is put intoa Thermos flask containing 200cm3 of water at 20°C. Byhow much has the entropy of the cube-water system changed whenequilibrium is reached? The specific heat of ice is 2220J/kg·K.
A soap bubble strongly reflects light of 463nm, wavelength, if the index of refraction of the film is 1.35, what is the thinnest thickness the soap film can be
The density of brass is 8.70 g/cm3. What is the ratio between the two moments of inertia, Ibrass : Ialuminum
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