Physics, 26.09.2019 12:20 blairjaneaoyrfvp
Which statement best describes the energy changes that occur while a child is riding on a sled down a steep, snow-covered hill? @4.3.8.a @2
a)
kinetic energy decreases and potential energy increases.
b)
kinetic energy increases and potential energy decreases.
c)
both potential and kinetic energy decrease.
d)
both potential and kinetic energy increase
Answers: 2
Physics, 22.06.2019 08:00, jhanes1983
Ms. hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.
Answers: 2
Physics, 22.06.2019 10:30, zoebtharpe
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 22.06.2019 20:30, mdkester11
Your friend increases her force on the desk by 30n . she doesn't change the direction of her push . what happens to the net force on the desk .will the desk accelerate
Answers: 2
Which statement best describes the energy changes that occur while a child is riding on a sled down...
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