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A 56 kilogram student is standing atop a spring in an elevator that is accelerating upward at 2.7 m/s2. The spring constant is 2300 N/m. Determine by how much is the spring compressed?
a childs water pistol shoots water through a 1.0 mm -diameter hole. if the pistol is fired horizontally 80 cm above the
Physicians perform needle biopsies to sample tissue from internal organs. A spring-loaded gun shoots a hollow needle into the tissue; extracting the needle brings out the tissue core. Find the impulse imparted by the tissue
First discuss how energy can be converted from one form to another, giving specific examples. Define what we mean
the earth has an angular speed of 7.272nbsp 10-5 rads in its rotation. find the new angular speed if an asteroid m
A 200kg projectile is launched with a speed of 50m/s at an angle of 30o from level ground. How much Kinetic Energy will it have when it hits the ground
A sky diver of mass 60 kilogram can slow herself to a constant speed of 93 km/h by orienting her body horizontally, Determine the magnitude of drag force on the sky diver
Estimate the wavelengths of the first three spectral lines in the Lyman spectral series for hydrogen. What energies (eV) do photons with these wavelengths have?
At what angle to the surface must a diver submerged in a lake look toward surface to see the setting Sun just all along the horizon.
The average intensity of solar radiation incident on the upper atmosphere of the earth is 1390 W/m2. Assuming the sun emits radiation uniformly in all directions, evaluate the total power radiated by the sun.
question 1.05 g of methyl benzoate is reacted with excess nitric acid in sulfuric acid. what is the theoretical yield
The conduction electrons in a metal can be considered for some purposes as an ideal gas. Find the beam current in amperes
A positive charge of magnitude Q1 = 6.5 nC is located at the origin. A negative charge Q2 = -6.5 nC is located on the positive x-axis, Calculate the angle in degrees of the electric field at point P relative to the positive x-axis
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