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The density of ice is 0.92 g/cm^3, and the density of seawater is 1.03 g/cm^3. A large iceberg floats in Artic waters. What fraction of the iceberg is exposed?
Pierre Curie discovered through experiment that the magnetization of a paramagnetic material is directly proportional to the strength of an external magnetic field and inversely proportional to the temperature in degrees Kelvin
A 100-W driveway light bulb is on 10 hours per day. Assuming thepower company charges 10 cents for each kilowatt-hour of electricity used, estimate the annual cost to operate the bulb.
A beam of unpolarized light of intensity 33.0 W/m2 passes through a polarizing sheet. What is the electric field amplitude of the transmitted beam?
A balsa-wood raft has the following dimensions: L=2.34m , W= 1.35m , H= 0.65m. if the mass of an average person is 72.5kg, how many people can the raft safely support
Earthquakes generate sound waves inside Earth. Unlike a gas, Earth can experience both transverse (S) and longitudinal (P) sound waves. how far away did the earthquake occur
You have a ball on a wire that is twirled in a circular orbit with a radius of 3.8 m, and the centripetal force acting on the ball, What is the speed of the ball in orbit
A block on a level frictionless surface has two horizontal forces applied, What is the total work done by the two forces
A ball rolls horizontally off the edge of a tabletop that is 1.40 m high. What was its speed at the instant it left the table
A professional race car driver buys a car that can accelerate at +5.9 m/s. Find the distance the two drivers travel before they are side by side
find out the speed of the test charge. How many electrons should be removed from A and put onto B to make the electrostatic force that acts on each object an attractive force whose magnitude is 23.6 N.
In outer space, a constant net force of magnitude 140N is exerted on a 30.4kg probe initially at rest. What acceleration does this force produce in m/s2
Four protons, each with charge +e, are fixed at the corners of a square of side length a, Determine magnitude and direction of the electric field E
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