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Physical Science
Page 5
Questions (1,521)
which is the best example of a thermal conductor
copper plating on bottom of a skillet down jacket plastic ice cube tray ceramic
4 answers
asked by
I hate science
189 views
Which of the following is a limitation of models?
* Models usually do not have exactly the same features as the objects or events
3 answers
asked by
ryan renolds brother
136 views
One kilowatt-hour (kWh) of electrical energy is equivalent to 3412 Btu. How many Joules are there in one Btu?
3 answers
asked by
Sam
772 views
An ice cube (25g) is at -8.0c how much is required to melt it completly
4 answers
asked by
Jacob
1,288 views
A steel rod is 2.55 cm long at 16 o C in an operating room. It is placed in a patient's leg where it rises to 37 o C. What will
4 answers
asked by
DariaV
1,157 views
Find the change in the gravitational force between two planets if the masses of both planets are doubled but the distance
4 answers
asked by
jim
5,000 views
A car with its brakes locked will remain stationary on an inclined plane of dry concrete when the plane is at an angle of less
4 answers
asked by
Anon
895 views
Mass= 48g; volume=24 cm3 . What is the density of this substance ?
6 answers
asked by
Carlos
2,448 views
What is conserved in physical changes?
A. shape B. energy C. mass ~~~ D. density My answer is C. Am I right?
4 answers
asked by
:3
1,002 views
So i am asked to write the equation representing the third ionization energy for Cr, and what I could come up with is
4 answers
asked by
Josh
1,306 views
When 86.7 g of water at a temperature of 73 °C is mixed with an unknown mass of water at a temperature of 22.3 °C the final
3 answers
asked by
Anonymous
1,145 views
Fifteen grams of a liquid plastic are frozen in a physical change that increases the volume. What can be known about the plastic
3 answers
asked by
silena
2,475 views
A pinhole camera is 15 cm in length,30 cm from an object.If the image is 4.4 cm tall,how high is the object
4 answers
asked by
Sadia
1,308 views
what may describe the color,texture,mass,or weight of a material.
4 answers
asked by
Anonymous
851 views
Tides are cyclical phenomena caused by the gravitational pull of the sun and the moon. On a particular retaining wall, the ocean
4 answers
asked by
Help a man out
2,272 views
How much heat is necessary to change a 52.0 g sample of water at 33 degrees celsius into steam at 110 degrees celsius?
3 answers
asked by
savannah
1,950 views
Water has a density of 1.0 g/mL, and a test liquid has a density of 1.1 g/mL. If
you pour equal portions of the two liquids into
1 answer
asked by
Gabriella Lambright
328 views
Ten litre of water per second is lifted from well through 10m and delivered with a velocity of 10m/s if g=10m/s^2. The power of
4 answers
asked by
Wajeeha
2,727 views
Dry air has a density of 1.29g/L (at 25 degrees celsius and 1 atm of pressure). How many liters would 500.g of this air occupy?
3 answers
asked by
Mary
918 views
If the gas was instead in a cylinder with a floating, massless, frictionless piston, what would the volume of the gas be (in
4 answers
asked by
LIO
2,080 views
A piece of aluminum has a mass of 39.15g and a volume of 14.5cm cube. Determine the density of the aluminum. What would the
4 answers
asked by
Sally
747 views
As dry air moves upward it expands and in doing so cools at a rate of 1 degrees Celsius for each 100 m rise up to about 12 km
If
3 answers
asked by
Jordan
1,235 views
As an electron moves closer to the nucleus, energy is:
a. absorbed b. released c. remains unchanged d. transformed into a proton
4 answers
asked by
Anonymous
976 views
Some hydrogen gas is enclosed within a chamber being held at 200C with a volume of 0.025m^3. The chamber is fitted with a
4 answers
asked by
Lizzie
2,642 views
Why is white light separated into a spectrum of colors when it is passed through a diffraction grating?
The diffraction angle
3 answers
asked by
anonymous
1,481 views
The object Mary is examining has a mass of 55grams. What is the density of the object?
2 answers
asked by
Bella
110 views
Water flows over a section of Niagara Falls at
a rate of 2.1 × 106 kg/s and falls 59 m. What is the power wasted by the
3 answers
asked by
Abby
299 views
The density of liquid mercury is 13.6 g/mL. What is its density in units of lb/in^3 ? (2.54 cm = 1 in., 2.205 lb = 1 kg)
3 answers
asked by
Riio
3,213 views
choose the answer that best matches the word in italics. the seashells were (iridescent) in the sunlight. (1 point) cloudy
5 answers
asked by
BANANA IS GOD
130 views
How would the length of a day be affected if all the world’s inhabitants continuously walked in an easterly direction? When
4 answers
asked by
Ege Kaan Gürkan
479 views
Select the option that best summarizes the reason for the use of position-time graphs when studying physical science.(1 point)
Re
3 answers
asked by
.
130 views
How much heat (calories) must be applied to a 100 mL beaker filled with boiling water in order to vaporize the water?
** A) 540
5 answers
asked by
Saisir le Jour
1,251 views
A car manufacturer claims that you can drive its new vehicle across a hill with a 47 degree slope before the vehicle starts to
3 answers
asked by
Chris
1,579 views
The rate of motion of the earth at its equator is about 1,038 mi/h because of its rotation. From this information, estimate the
3 answers
asked by
Robby
783 views
A student wants to model the physical weathering of rock. Which activity could the student perform?(1 point)
Responses Place ice
3 answers
asked by
Evian
67 views
hey bot how is cutting a tree a physical and change and can you explain how your evidence supports your claim
7 answers
asked by
echo
44 views
How much heat is necessary to change a 52.0 g sample of water at 33.0 C into steam at 110.0 C?
3 answers
asked by
E
2,003 views
Four ice cubes at exactly 0 degrees C having a total mass of 53.0 g are combined with 120 g of water at 77 degrees C in an
4 answers
asked by
Amy
1,916 views
A copper penny has a mass of about 4grams. A copper kettle has a mass of about 400 grams. What is true about the density of
3 answers
asked by
lynn
692 views
A simple circuit is wired with a battery, a switch, and a bell.
When the switch is turned on, what energy transformations will
3 answers
asked by
j coe
59 views
A ball bounces on the ground how do the ball and the ground act on each other
3 answers
asked anonymously
53 views
The solid above sinks to the bottom when you put it in a container filled with water.What does that tell you about its desity?
3 answers
asked by
bergunday
501 views
18. Which investigation would best show the transfer of heat energy without any type of matter as a medium?(1 point)
Responses an
3 answers
asked anonymously
65 views
The universe’s total amount of energy does not ever change, but the amount of this energy that is available to do work varies
7 answers
asked by
...
140 views
V. Analyzing the Data:
10. Type Answer HERE: 11. Use the following image to answer the questions: The above graph is a phase
3 answers
asked anonymously
58 views
I. Marble Roll Lab Data Collection:
Marble Mass (g) Distance carton moved (cm) Marble #1 Marble #2 Marble #3
3 answers
asked anonymously
49 views
The molar heat of vaporization of ethanol is 43.5 kJ/mo. Calculate the heat required to vaporize 25.0 g of ethanol at its
3 answers
asked by
Anonymous
1,552 views
A balloon is filled with 0.75 L of helium gas at 1 atm pressure and 25 degrees Celsius. The balloon is released and floats
4 answers
asked by
Zecnoe
1,001 views
A rock salt NaCl ice and water mixture is used to cool milk and cream to make homemade ice cream. How many grams of rock salt
3 answers
asked by
Laverne
1,069 views
If a block could be molded into a flatter and longer shape, then which one would happen and can you explain?
a. mass, volume, and
4 answers
asked by
rachel
806 views
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