When Holly injures her shoulder playing baseball, she uses an instant ice pack to reduce the swelling. She breaks the inner, activator portion of the instant cold pack releasing the solid urea into the surrounding water. What process does Holly observe as she uses the cold pack?
A) Urea absorbs and releases heat energy into the surroundings.
B) When the urea dissolves it absorbs heat and the cold pack gets colder.
C) The urea causes the surroundings heat up as the cold pack releases energy.
D) As the urea mixes in the water it releases heat making the cold pack colder.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “When Holly injures her shoulder playing baseball, she uses an instant ice pack to reduce the swelling. She breaks the inner, activator ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Explain one effect that burning fossil fuel has on the environment
Answers (1)
Ocean currents flow from east to west near the a. Gulf Stream. c. equator. b. poles. d. global winds.
Answers (1)
in what distance can a 1500kg automobile be stopped if the brake is applied when the speed is 20m/s and the coefficient of sliding friction is 0.7 between the tyres and the ground?
Answers (1)
A taxicab moves five blocks due north, five blocks due east, and another two blocks due north. Assume all blocks are of equal size. What is the magnitude of the taxi's displacement, start to finish?
Answers (1)
A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the crossing receives a frequency of 207 Hz. What is the speed of the train?
Answers (1)
New Questions in Physics
Visit this website and locate the element mercury, whose chemical symbol is Hg. Click on the square to read about the history, properties, and uses of mercury. Name three uses for mercury.
Answers (1)
Ten seconds after starting from rest, a car is moving at 40 m/s. what is the car's acceleration in meters per second per second?
Answers (1)
A student builds a simple circuit and a magnet under one of the circuit wires. When the switch is closed charges flow int the circuit and the wire moves
Answers (1)
Cite an example in which a force is exerted on an object without doing work on the object
Answers (1)
Which equation best expresses the first law of thermodynamics, assuming Q is heat, U is internal energy, and W is work? A.ΔW = ΔQ + ΔU B.ΔW = ΔU - ΔQ C.ΔQ = ΔU+W D.ΔU=Q - W
Answers (1)