it would increase
considering the volume to remain constant, adding more air into it would result in more collisions between the particles and the tyre walls, since it's an enclosed surface.
greater if the tuning fork were
(1) struck more softly
(2) struck harder
(3) replaced by a lower frequency tuning fork
(4) replaced by a higher frequency tuning fork
Materials-
Earth Science: A Reference Guide -Earth Science: A Reference Guide - Earth's Oceans (pp. 124-125), Oceans Temperature (pp.130-131), Ocean Salinity(pp.132-133), Density of Ocean Water (pp.134-135)
watch
4 cups -tap water - You will need an ice cube tray and access to a freezer to freeze the water.
teaspoon
salt, table
______________________________________________________________
1.) How will the ice water mix with the salty water? Write your hypothesis below.
(I can't add the picture of the chart so bear with me)
Solution - Hypothesis Describing Mixing - Hypothesis Describing Temperature
(Will the top be warmer, cooler, or the same as the bottom?)
Solution 1
(Freshwater) - -
Solution 2
(salty water) - _____________________ - ________________________
Solution 3
(saturated water)- ______________ - _____________________
2.) Complete the data table. Sketch, use your computer to draw or write a detailed description to describe how the ice melts into the different solutions. At each interval, record the temperature at the top and bottom of the glass.
(Again I can't add the pic of the chart so bear with me)
Solution 1 - 0 minutes- 5 minutes- 10 minutes- 30 minutes-
(Freshwater)
Temperature
(top of glass) -______________________________-
Temperature
(bottom of the glass)-_______________________________-
Solution 2- 0 minutes- 5 minutes- 10 minutes- 30 minutes-
(salty water)
Temperature
(top of glass)- ____________________________________-
Temperature
(bottom of glass)-_______________________________________
Solution 3
(saturated water)- 0 minutes- 5 minutes- 10 minutes- 30 minutes-
Temperature
(top of glass)-___________________________________
Teperature
(bottom of glass)-_______________________________________
3.) Summarize your data. Describe how the ice melted into each solution, and compare the temperatures at the top and bottom of the glass.
(can't add the pic, bear with me)
Solution-
Mixing (how did the colord, fresh, melt-water mix with the salty water?)- Temperature (Was the top warmer or cooler, or was it the same as the bottom?) -
Solution 1
(freshwater)-__________________________________________-
Solution 2
(salty water)-___________________________________________
Solution 3
(saturated water)- ____________________________________
4.) What does your experiment suggest about what happens when icebergs melt into the ocean? Based on your data, do you think the sea-surface temperatures are warmer or cooler due to the melting water? Make sure you explain how your experiment helps you answer this question.
I really need help with this as soon as possible, if you do not know the answer to this do not answer please, let me repeat that, PLEASE DON'T ANSWER IF YOU DON'T KNOW THE ANSWER TO ALL THE QUESTIONS, also if your a k12 student, friend me so we can help each other with quizzes and stuff, and if you are a k12 student and you answer this, please don't put your exact answers on this, make it different from yours, I don't want a heart-attack email from my teacher
The way ice water mix with the salty water is that when a person adds salty water to ice, the salt will be the first thing to dissolves in the layer of liquid water that is seen on the surface.
By reducing the freezing point below the ices temperature, when the Ice is said to be in contact with salty water, it tends to melts, forming more liquid water, that will then dissolves more salt, causing a lot of ice to melt, and the process still goes on.
Learn more about Water Density from
B. white dwarf.
C. red giant.
D. nebula.
User:
15. With an average surface temperature of about 737 K, _______ is the hottest planet.
A. Mars
B. Mercury
C. Earth
D. Venus
Correct answer choice for question 1 is:
D) Nebula.
Explanation:
A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized vapors. Basically, the nebula was a sign for any distributed enormous object, including galaxies behind the Milky Way. Most nebulae are of a large size, some are numbers of light years in diameter. A nebula that is almost visible to the human eye from Earth would appear larger, but no flashing, from close by. The Orion Nebula, the glowing nebula in the sky that controls a region twice the diameter of the full Moon, can be observed with the naked eye but was dropped by early scientists.
Correct answer choice for question 2 is :
D) Venus
Explanation:
Venus is the second planet from the Sun, revolving it every 224.7 Earth days. It has the largest revolution time of any planet in the Solar System and turns in the different direction to most other planets. It does not have any real satellites. It is the second glowing natural object in the night sky after the Moon, leading an obvious magnitude of 4.6 bright quite to throw shadows at night and, unusually, obvious to the naked eye in full daylight.
Answer:
Yes.
Explanation:
b. False
False. The occurrence of a static charge on a substance is due to the gain or loss of electrons, not protons. This electron transfer occurs mostly when friction is between two different materials, leading to the creation of static electricity. Protons, being part of the atomic nucleus, stay stable and do not move, unlike electrons.
The statement given in the question is False.
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