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A hot iron horseshoe (mass = 0.50kg ), just forged, is dropped into 1.50L of water in a 0.30kg iron pot initially at 25.0?C.
If the final equilibrium temperature is 32.0?C, estimate the initial temperature of the hot horseshoe.
Find an expression for work done by the gas
The period of motion of an object-spring system is T = 0.546 s when an object of mass m = 254 g is attached to the spring, Find the frequency of motion in hertz
At the instant the alpha particle leaves the nucleus, the centers of the two are 7.5 apart and essentially at rest. Find their speeds while they're a great distance apart. Treat each particle as a spherical charge distribution.
plan a vector to represent each of the two teams. find the magnitude of the resultant.
High-speed stroboscopic photographs show that the head of a 190-g golf club is traveling at 58 m/s just before it strikes a 46-g golf ball at rest on a tee, Find the speed of the golf ball just after impact
what is the volume of an iron atom. What is the ratio of the mass density of girder A to the mass density of girder B.
Give a definition of "laissez faire" economics. (An economic doctrine that opposes government regulation of or interference in commerce.) Explain why do you think this was the dominant political and legal view in the 1800s and early 1900s?
When it rains water vapour in the air condenses into liquid water and energy is released. How much energy is released when 0.0244m of rain falls over an area of 2.59 x 10^6 m^2? If the average energy needed to heat one home for a year is 1.40 x 10^11..
What is the acceleration of two falling sky divers. Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting flywheel up to its top speed of 440 π rad/s. One such flywheel is a solid, uniform cylinder with a ..
A ball is thrown straight upward. At 5.50 m above its launch point, the ball's speed is one-half its launch speed. What maximum height above its launch point does the ball attain?
A piston, A, as shown below, has a diameter of 0.61 cm. A second piston, B has a diameter of 3.7 cm. Determine the force, F, necessary to support 500.0 N weight in the absence of friction.
Presume that the strength of the electric ?eld about an isolated point charge has a certain value at a distance of 4 m.
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