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A horseshoe (mass= 0.50 kg), which has just been forged, is dropped into 2.7L of water in a 0.45kg iron pot initially at 22 C. If the final equilibrium temperature is 27 C, estimate the initial temperature of the hot horseshoe.
15.0kg stone slides down a snow-covered hill, leaving point A with a speed of 10.0m/s . There is no friction on the hill between points A and B, How far will the stone compress the spring
Near the surface of the Earth a block of mass M is sliding down an incline with angle thetha = 30degress, what maximum height H will the block reach
A laser beam is incident at an angle of 42.0° to the vertical onto a solution of corn syrup in water. what is the index of refraction of the syrup solution
Standing at a crosswalk, you hear a frequency of 590 Hz from the siren of an approaching ambulance. Determine the ambulance's speed from these observations
A painter (mass = 55.7 kg) climbs 3.28 m up a 7.16 m long ladder leaning against a frictionless wall. The ladder has a mass of 16.2 kg, find Friction force between the ladder and the ground
A plane accelerates from rest at a constant rate of 5.00 along a runway that is 1800 long. What percentage of the takeoff velocity did the plane gain when it reached the midpoint of the runway
A pulsed laser emits light in a series of short pulses, each having a duration of 23.0 ms. The average power of each pulse is 4.70 mW, Find the number of photons in each pulse
question1the pilot of the aircraft wishes to fly due west in a 48.5 kmh wind blowing toward the south. the speed of an
a spring with a force constant of 52 n m has a relaxed length of 2.45 m. when a mass is attached to the end of the
Where can a third charge be placed. To what common temperature must the two pieces be heated in order that the cylinder just fit over the piston.
A motorcycle, which has an initial linear speed of 8.1 m/s, decelerates to a speed of 1.9 m/s in 6.7 s. find the angular displacement (in rad) of each wheel
The density of ice is 917 kg/m3. What fraction of the volume of a piece of ice will be above the water when it is floating in fresh water, Fraction of the volume above the water
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