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The Potential Energy of an object attached to a spring whose elastic constant is K is given by the formula. The quantity x is the displacement from the equilibrium condition. Assume that K = 30 N/m and x = 0.7 m: Determine the PE.
questionsome of properties of a diatomic molecule no can be described in terms of a effortless model in which two atoms
A student begins at rest and then walks north with an average speed of v1=0.85 m/s. What was the student's overall average velocity, in m/s, for the trip assuming the student spent equal times at speeds v1 and v2
Calculate the capacity of a roll crusher. The separation is 7 millimeter, speed of the rollers is 50 revolutions per minute
A skier of mass 106 kg travels down a frictionless ski trail. If the top of the trail is a height 206 m above the bottom, what is the work done by gravity on the skier
A lady pushes down on a 35.0 kg crate (constrained to move along a horizontal floor) at an angle of 47.3 degrees to the horizontal with a force of 125N along a frictionless surface. what is the normal force of the surface on the crate
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.13 m. What is the magnitude of the initial acceleration of the third sphere
As a bat flies toward a wall at a speed of5.70m/s , What frequency does the bat hear in the reflected wave
A 10 \rm g bullet traveling at 440m/s strikes a 12kg , 1.2-\rm m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, What is the angular velocity of the door just after impact
the conductivity of tungsten at room temperature s 1.8 107 am2vm is significantly smaller than that of copper. at the
An H-R diagram plots luminosities of stars against their temperatures. Why was this such an important discovery? What current research is making use of the H-R diagram information?
A proton is propelled at 2 x 10^6 m/s perpendicular to a uniform magnetic field. If it experiences a magnetic force of 5.8 x 10^-11 N, find the strength of the megnetic field
if 60 of u.s. petroleum use goes for transportation and 1 of this goes for buses how much oil could be saved per year
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