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Physical Sciences
Page 4
Questions (453)
WHAT IS MEAN OF CHEMISTRY?
2 answers
asked by
ADEGBOYEGA
489 views
Like water, hydrogen fluoride, HF, and ammonia, NH3, have relatively high boiling points. Explain.
A.The polar molecules of each
2 answers
asked by
Hannah
744 views
How does the mass of the Earth compare to the mass of moon?(1 point)
Responses The mass of the Earth is about 40 times the mass
3 answers
asked anonymously
43 views
alculate the amount of heat required to raise the temperature of a 39 g sample of water from 9 ∘C to 21 ∘C
1 answer
asked by
Anonymous
437 views
Which of the following statements is correct about Newton’s Law of Gravitation?
a Gravitational Theory only applies to objects
3 answers
asked anonymously
56 views
Construct & solve a problem involving a person swimming across a river which has a waterfall some distance downstream.
Please
1 answer
asked by
Smi
380 views
Write Four diffences between evaporation and condensation
1 answer
asked by
Vineethsai
325 views
Does Gravity affect Entropy and Kinectic and potential energy for molecules? Explain it in detail along with mathematical
3 answers
asked by
Dave
42 views
I need some1 to explain heat capacity to me because the way my lesson is teaching it is EXTREMELY confusing!! A simple
4 answers
asked by
Sairsir le Jour
517 views
Physical Sciences: The density of water is p=1g/cm3. What is the mass of 2L of water?
1 answer
asked by
Debbie
428 views
Physical Sciences: what is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3?
3 answers
asked by
Debbie
461 views
What is Physics
1 answer
asked by
Joy
282 views
I have a question that two ski decide to have a race. I need show a graph of height versus time of the two skiers going over a
1 answer
asked by
george
409 views
Water has a much higher specific heat capacity than most liquids. Explain in terms of the attractive forces between water
2 answers
asked by
Jill
561 views
The size of a hydrogen atom is about 1.2×10^−10 m across. The size of an oxygen atom is 0.000000000152 m across. What is the
3 answers
asked anonymously
67 views
Which of the following is the best example of transforming electromagnetic energy into thermal energy?
A. when trees absorb
2 answers
asked by
DvD
994 views
How much energy (in kilojoules) is needed to heat 5.55g of ice from -13.5 ∘ C to 26.5 ∘ C. The heat of fusion of water is
2 answers
asked by
Kayla
786 views
The normal boiling point of liquid oxygen is -182.97¡èC, what is this temperature on the kelvin and fahrenheit scale?
2 answers
asked by
samstix
507 views
1. What measurement best describes the results of a scientific experiment regarding volume?
A. 1425 mL B. 5 quarts C. 2 pints D.
15 answers
asked by
Beatrice
807 views
What is fission?
How is Einstein's theory of special relativity expressed? What does each letter stand for?
2 answers
asked by
Bryce
634 views
thermal conductivity of solids depends on ??
1 answer
asked by
jigs
340 views
calculate the heat energy released when 25.8 g of liquid mercury at 25 C is converted to solid mercury at its melting point.
Cons
2 answers
asked by
Jill
997 views
What are the factors and forces involved when a basketball rebounds off of a backboard?
1 answer
asked by
1235
47 views
How can we define Earth's history and what are the key areas of study within this field?
1 answer
asked by
Jonnaeya
1,044 views
What is the relationship between the change in volume and the work done on a gas during a compression process?
1 answer
asked by
takunda
600 views
What is the maximum number of Cs+ ions that can be produced per joule of energy absorbed by a sample of gaseous Cs atoms?
Please
2 answers
asked by
Safat
555 views
I studied this 2 years ago in college and am no back in school. I can't remember any of this stuff and I really need to figure
1 answer
asked by
Jessica
1,072 views
According to Kepler’s second law of motion, which statement describes the area swept out by a line between a planet and the
3 answers
asked by
sleepy
78 views
How much heat in joules is needed to raise the temperature of 5.5 L of water from 0 degrees Celsius to 78 degrees Celsius?
2 answers
asked by
Patrick
1,184 views
The process of radioactive decay is unpredictable and irreversible. Which option would be an appropriate model of the
3 answers
asked anonymously
50 views
A skier skies down a slope with an average speed of 50 km/s. How far does the skier travel in 5 minutes?
4 answers
asked by
Corrie
592 views
how can the mass number be found
Count up the total number of ______ and __________ in the atom.
3 answers
asked anonymously
24 views
A student used a graduated cylinder to measure the volume of an irregularly-shaped rock. First, he added 25 mL of water to the
3 answers
asked by
needapass
54 views
Dina computed the mass of 1,000 protons in grams. The calculator displayed the number 1.67E21. What is the mass of 1,000 protons
3 answers
asked by
Issa
342 views
What are the wavelengths of electromagnetic wave in free space that have the following frequencies?
(a) 3.00 10^19 Hz pm (b) 7.50
3 answers
asked by
Matt Will
1,666 views
thank you!
1 answer
asked by
Celest
167 views
Using terms of equilibrium, what is the difference between spilling a glass of milk versus ozone eminating from your copy
1 answer
asked by
Chris
300 views
After the basketball hits the ground, it starts rolling across the ground in front of the wall. What kind of energy does it have
3 answers
asked by
Jo
16 views
Which statement is correct about the flow of thermal energy inside Earth?(1 point)
Responses Energy flow inside the mantle causes
3 answers
asked by
optional
49 views
The prefix hecto means one thousand (1,000). True or false?
3 answers
asked anonymously
36 views
How much heat energy is needed to convert 125.0g of ice from -27.0ºC to a liquid at 50.0ºC?
1 answer
asked by
Cha-Ching
878 views
What is a meter? Give two examples of objects that are a meter in length.
3 answers
asked anonymously
16 views
What is the U.S. customary system of measurement?
3 answers
asked anonymously
63 views
which one is correct:
1. the box contains two slides labeled "A" or "B" 2. the box contains two slides labeled "A" and "B"
4 answers
asked by
Chris
324 views
what happens to the pressure at locations moving vertically up or down a ph constant-enthalpy line?
1 answer
asked by
miguel
349 views
The rapid movement of gases molecules can be explained because gases have ___ size particles and exert _____ attraction for
3 answers
asked anonymously
37 views
In which of these can plasma be found?
Responses A lightninglightning B neon signsneon signs C microwave ovensmicrowave ovens D
3 answers
asked anonymously
15 views
Which particle has the most energy?
Responses A iceice B waterwater C steamsteam D there is no difference in particle energy
3 answers
asked anonymously
17 views
Which of the following has the largest second ionization energy?
Question 29 options: a) S b) Mg c) Si d) Na e) P
3 answers
asked anonymously
28 views
As the temperature increases at constant pressure, what happens to the volume of the gas?
3 answers
asked anonymously
11 views
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