Physics, 18.08.2021 01:00, noorshular
Could someone please help me with this as soon as possible?! I just need someone to walk me through how to solve it! Thank you!
A 2.53 kg chunk of copper at -155°C is
dropped into 0.822 kg of water at
15.0°C. They cool to 0°C, and some
(but not all) of the water freezes to ice at
0°C. How much ice freezes?
(Unit = kg)
Answers: 2
Physics, 22.06.2019 16:30, mikayla62
Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
Answers: 1
Physics, 22.06.2019 20:10, hncriciacheichi
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
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