physics/chemistry(Thermodynamics)!!!!!helppppp!
In a certain chemical process,a lab technician supplies 254 j of heat to a system. At the same time,73 j of work are done on the system by iys surroundings.What is the increase in the internal energy of the system?
physics
A steel rod of length 1m is heated from 25°c to 75°c keeping its length constant.The longitudinal strain developed in the rod is:(steel:12 X 10^-6/°c) "6X10^-4" ; "-6X10^-4" ; "0" please help me as soon as possible by explain this.
physics/chemistry(kinetic ..gasses)
Please help...
physics/chemistry(kinetic ..gasses)
How many degreed of freedom have the gas molecules,if under standard conditions the gas dendity is 1.3kg/m^3 and velocity of sound propagation on it is v=330m/s?
math
mary color a picture with colored marker. she used red 2 times blue 3 times yellow 6 times orange 1 time and green 1 time. what fraction of the time did mary use yellow?
physics
A cannon tilted up at a 26.0 degree angle fires a cannon ball at 78.0 m/s from atop a 12.0 m-high fortress wall. What is the ball's impact speed on the ground below?
4TH grade
thanks i will try
4TH grade
what are the major land biomes
2nd grade
i don`t know and r u sure your in 2nd grade
4TH grade
if your geting a bank loan of 100,000 how much would you be getting payed
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