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A physics student comes up with the following scheme to gauge the building height a timing mechanism is set up to gauge the time it takes for a lead weight dropped from the top of the building to fall the last 15m before hitting the ground. Observations for a certain building show that the weight takes 09 seconds to fall this last 1.5 m how high is the building?
A group of particles is traveling in a magnetic field of unknown magnitude and direction. compute the magnitude and the direction of the magnetic field
Equal amounts of heat are added to equal masses of iron andsilver at the same intial temperature. Which metal will have the higher final temperature?
On its highest setting, a heating element on an electric stove is associated to an ac voltage of 240 V. This element has a resistance of 29 ohm. Discover the power dissipated in the element.
A small conductive rod of length 1.3 m moves with a constant velocity v=20 m/s in a direction parallel to a long wire carrying a current of 40 A. Calculate the electric potential induced across the rod
A 5.0 kg block of aluminum isheated at atmospheric pressure so that its temperature increasesfrom 20°C to 38°C. Find the change in internal energy of the aluminum
Star A and B have bolometric magnitudes ma = 5 and mb = 10. If both stars have same absolute magnitude, M, what's the ratio of their distances
A 0.540-kg object attached to a spring with a force constant of 8.00 N/m vibrates in simple harmonic motion with an amplitude of 11.2 cm. Calculate the maximum value of its speed
1)A crate of potatoes of mass 19.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.82 and μk = 0.29. Find the frictional force (magnitude and direction) on the crate if the crate is sliding d..
A pyrex beaker that holds 250 ml of water at 20 degrees celcius is filled to the brim. how much water (if any) will spill out of the beaker
A 11.0 kilogram object undergoes an acceleration of 1.5 m/s2. find what acceleration is produced
most species of fish have expandable sacs commonly known as swim bladders that enable fish to rise in the water by
A block of wood 10 cm by 10 cm by 40 cm with mass 3.2 kg and uniform density stands on its end on level ground. In the following, assume that static friction with the ground is large enough that if I push on the block, it does not slide. IS the an..
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