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Tell me how you expect the intensity of light to vary as you move away from the light. Tell me why you think this is the case. In other words, give me a simple derivation of your relationship.
Under standard conditions, the density of air is 1.293 kg/m3 and that of helium is 0.178 kg/m3. What must be the minimum diameter of the spherical balloon
Two horizontal forces, 249 N and 165 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to point to the direction of the net force.
A wire with mass 38.0g is stretched so that its ends are tied down at points a distance 78.0cmapart. What is the speed of propagation of transverse waves in the wire
A square loop of wire of edge length a carries current i. Find the magnitude of the magnetic field produced at a point on the central perpendicular axis of the loop and a distance x from its center?
a student holds a tuning fork oscillating at 258 hz. he walks towards a wall at a constant speed of 1.42 ms.a what beat
Treat the ball as a uniform, solid sphere, ignoring the finger holes. Illustrate what is the acceleration of the center of mass of the ball?
A dentist's drill starts from rest. After 2.90 s of constant angular acceleration it turns at a rate of 2.1 104 rev/min. Find the drill's angular acceleration
GPS satellites orbit the Earth at an altitude of 12,500 miles. How long does it take these satellites to make a complete orbit of the Earth?
The first star on the handle of the Big Dipper and the star that forms the far bottom edge of the bowl(Merak).
The .50 kg box shown below is sliding with an unknown initial velocity before it slides down the incline and then collides with a mass less spring of spring constant 4.0 N/m, what was the initial velocity of the box
During a stage production of Peter Pan, the 53.5 kg actress playing Peter has to fly in vertically (descend). Calculate the tension in the wire supporting the actor
An object is determined to have an apparentm mass of 882 g in air and 643 g when immersed in water. What is the density of the object
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