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A car is driven east for a distance of 49 km, then north for 35 km, and then in a direction 33° east of north for 22 km. Draw the vector diagram and determine the total displacement of the car from its starting point and it's direction.
helium atoms emit light at several wavelengths. light from a helium lamp illuminates a diffraction grating and is
A train moving with constant velocity travels 180 m north in 14 s and an undetermined distance to the west. How far west has the train traveled in this time
A flight attendant pulls her 72.0 N flight bag a distance of 282 m along a level airport floor at a constant speed. The force she exerts is 33.0 N at an angle of 52.0° above the horizontal.
An ideal gas is compressed from a volume of 400 cm^3 to a volume of 150 cm^3 slowly and isothermally in a piston-cylinder system. determine the heat transfer
A rod flies with constant velocity past a mark which is stationary in the K frame. In the K frame, it takes the rod Deltat = 20 ns to fly pass the mark. In the K' frame fixed to the rod, the mark moves past the rod in Deltat' = 25 ns. Find (a) the ve..
The flywheel in a car is a solid cylinder with a mass of 100 kg, a radius of 12 cm, and a length of 5.0 cm. What is the kinetic energy of the cylinder
Calculate the shortest wavelength that will be emitted from an X-ray tube in which the electron beam has been accelerated through a potential difference of 30 kV
A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. what speed must the player give the ball
a flat coil of wire is used with an lc-tuned circuit as a receiving antenna. the coil has a radius of 0.24 m and
A person holds a ladder horizontally at its center. Treating the ladder as a uniform rod of length 2.75 m and mass 8.00 kg, find the torque the person must exert on the ladder
In a certain time, light travels 4.88 km in a vacuum. During the same time, light travels only 3.19 km in a liquid. What is the refractive index of the liquid
Consider a closed triangular box resting within a horizontal electric field of magnitude E = 8.24 104 N/C. Calculate the electric flux through the vertical rectangular surface of the box.
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