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A skier coasts down a very smooth, 10-m-high slope. If the speed of the skier on the top of the slope is 5.0 m/s, what is his speed at the bottom of the slope?
A cube of ice is taken from the freezer at -8.5°C and placed in a 97 g aluminum calorimeter filled with 292 g of water at room temperature of 20°C. The final situation is observed to be all water at 18°C. What was the mass of the ice cube?
You sing into a well and find that the well resonates at frequencies of 176 Hz and 208 Hz with no resonances between these two frequencies. What is the frequency of the fundamental mode?
a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.20 ?,and a 2.50-T magnetic field is directed perpendicularly downward, At what rate is energy delivered to the resistor
A truck is traveling at 11.4 m/s down a hill when the brakes on all four wheels lock. How far does the truck skid before coming to a stop
the blood plays an important role in removing heat from th ebody by bringing the heat directly to the surface where it can radiate away. nevertheless, what is the thermal conductivity of this persons skin
A hotel elevator ascends 190 m with a least speed of 4.0 m/s. Its acceleration and deceleration both have a magnitude of 1.4 m/s2.
Two narrow slits are illuminated by a laser with a wavelength of 593 nm. Calculate the distance between the two slits
A package in an airplane moving horizontally at 275 m/s is dropped while the altitude is 766 meters. How far forward from the spot over which it was dropped does the package land.
A rocket-powered hockey puck has a thrust of 2.0 N and a total mass of 1.0 kg. How far does the puck land from the base of the table
If the tension in a guitar string is increased by 20%, by what percentage does the wave speed increase
Calculate the number of electrons in a steel iron pinhead. The pinhead may be assumed to be spherical with a diameter 2mm
When a 2.90 kg object is hung vertically on a certain light spring described by hooke's law, if the 2.90-kg object is removed, how far will the spring stretch if a 1.45 kg block is hung on it
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