Match the physical properties on the left with their descriptions on the right. 1. luster ability to dissolve in another substance 2. freezing point the shininess of a material 3. viscosity temperature at which a liquid becomes a solid 4. solubility able to be pulled into a wire 5. ductility the measure of a substance's resistance to flow
Answers
Answer :
1) Luster → the shininess of a material
2) Freezing point → temperature at which a liquid becomes a solid
3) Viscosity → the measure of a substance's resistance to flow
4) Solubility → ability to dissolve in another substance
5) Ductility → able to be pulled into a wire
Explanation :
Luster : It is defined as the material which has the shining property.
Freezing point : It is the temperature at which the phase changes from liquid state to solid state at low temperature.
Viscosity : It measures the resistance of the liquids to flow .
Solubility : It is defined as the ability of a substance (solute) to dissolve into a liquid (solvent).
Ductility : It is defined as the ability of a metal into a thin wire without breaking.
Final answer:
The physical properties are correctly matched as: Luster corresponds to the shininess of a material, freezing point is the temperature at which a liquid becomes solid, viscosity is the measure of a substance's resistance to flow, solubility is the ability to dissolve in another substance, and ductility refers to a substance's ability to be pulled into a wire
Explanation:
The correct matches for the physical properties and their descriptions are as follows:
- Luster is the shininess of a material.
- Freezing point is the temperature at which a liquid becomes a solid.
- Viscosity is the measure of a substance's resistance to flow.
- Solubility is the ability to dissolve in another substance.
- Ductility is the property to be pulled into a wire.
It's crucial to understand these properties in chemistry, as they help us identify and characterize different substances.
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One consequence of Einstein's theory of special relativity is that mass is a form of energy. This mass-energy relationship is perhaps the most famous of all physics equations: E=mc2, where m is mass, c is the speed of the light, and E is the energy. In SI units, the units of speed are m/s. For the preceding equation to have consistent units (the same units on both sides of the equation), the units of E must be which of the following?
Carbon and hydrogen are examples of pure substances or
During the motion of the slinky in a transverse wave, what do the particles of the slinky coil do?Question 3 options:the slinky particles move from the hand down the wave to the blockthe slinky particles move side to sidethe slinky particles move up and down
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Answer:
10
Explanation:
Answers
Answers
Answer:
B) 5
Explanation:
Mechanical advantage = D/W
= 10/2
= 5.
It has no unit because the inches in the length and width will cancel out.
Answers
parallel,effective resistance 1/R=1/R₁ +1/R₂ +1/R₃...
Here,effective resistance 1/R =1/7 +1/5+ 1/4+1/2
=1.092
R = 1/1.092 =0.915Ω
voltage V=9 V
current I=V/R
I=9 / 0.915
=9.83 A
=
now , V= 9V
V = IR
I =
I =
I = 9.835714 A
b. Cooling buildings
c. Heating buildings
d. Heating water for using in homes
Answers
Heating buildings
B. Raise the object farther off the ground
C. Lower the object towards the ground
D. Allow the object to roll on the ground
Answers
Answer:
B Raise the object farther off the ground
Final answer:
To increase the gravitational potential energy of an object without altering its mass or gravity, you would need to raise the object to a greater height. The potential energy is determined by the object's mass, its height, and the gravitational force, as shown by the formula potential energy=mgh.
Explanation:
To increase the gravitational potential energy of an object without changing its mass and gravity, you could raise the object farther off the ground. This is because gravitational potential energy is a function of an object's mass, height, and acceleration due to gravity, as represented by the formula potential energy = mgh, m being mass, g being gravity, and h being height.
Moving the object to a greater height without acceleration or carrying the object with or without acceleration at the same height will not result in an increased potential energy. Only by raising the object to a higher position or altitude, you increase its potential energy.
In essence, the principle involves work done against the gravity. When an object is raised to a higher elevation, work is done against gravity. This work gets stored as potential energy in the object-Earth system. Thus, the higher the position of the object, the higher would be its gravitational potential energy.
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