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A 1.5-kg projectile is fired from level ground. The vertical component of the initial velocity is 65 m/s and the horizontal component is 29 m/s. Ignore air resistance and the curvature of the earth in this problem. How far in meters does the projectile travel horizontally?
In an interstellar gas cloud at 50 K, the pressure is 1.00 x 10-8 Pa. Assuming that the molecular diameters of the gases in the cloud are all 20 nm. Find what is their mean free path
q1. potassium iodide has an interplanar spacing of d 0.296 nm. a monochromatic x-ray beam shows first-order
a 2.00-in diameter rod 15 ft long elongates 0.12 in under a load of 60 kip. the diameter of the rod decreases 0.0004 in
consider the earth and a cloud layer 825 m above the earth to be the plates of a parallel-plate capacitor. if the cloud
A superhero flies 147 m from the top of a tall building at the angle of 33 degrees below the horizontal. What is the vertical component of the superhero's displacement.
A beam of light has a wavelength of 500 nm in vacuum. What are the wavelength and the speed of the light in the glass
it is approximately 5800 kelvin on the surface of the sun.a. how much faster do sound waves travel there than on earth?
If the lowest height that box reaches is h=10m (before it is pulled back up by the elastic rope). Find the young modulus of the rubber y=?Gravitational acceleration is g=10m/s^2
A ten-year exposure to the sound of a riveting machine will cause your threshhold of hearing to shift from 0 dB to 30 dB. What is the sound intensity corresponding to 30 dB? The normal lowest detectable intensity is 1.0 X 10 -12 W/m squared.
A child is twirling a 0.0215-kg ball on a string in a horizontal circle whose radius is 0.143 m. The ball travels once around the circle in 0.586 s. Determine the centripetal force acting on the ball
A photon of energy 50 MeV moves along the x-axis and Comptonscatters with an electron initially at rest. After the collision theresulting photon is observed traveling along the y-axis and the electron hasrecoiled.
Use Kepler's third law to show that the closer a planet is to the Sun, the shorter its period. Use Kepler's third law to show that the closer a planet is to the Sun, the greater its speed around the Sun.
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