PHYSICS HIGH SCHOOL

If a certain mass of mercury has a volume of 0.002 m3 at a temperature of 20°C, what will be the volume at 50°C? A. 0.002010812 m3
B. 0.000010812 m3
C. 0.004021624 m3
D. 0.002021624 m3

Answers

Answer 1
Answer: Note that the density of mercury is
(i) 13545 kg/m^3 at 20 deg.C
(ii) 13472 kg/m^3 at 50 deg, C

For a given mass, M kg, by using the volume at 20 deg. C, obtain
M = (13545 kg/m^3)*(0.002 m^3) = 27.09 kg .

Let V m^3 = volume at 50 deg. C
Then
(13472 kg/m^3)*(V m^3) = 27.09 kg
V = 27.09/13472 = 0.002010837 m^3

Answer:
The closest answer is A. 0.002010812 m^3

Answer 2
Answer: You answer is Option A. 0.002010812 m3 Hope this helps :)

Related Questions

MIDDLE SCHOOL

A bullet travels at 850 m/s. How long will it take a bullet to go 1 km?

Answers

The answer to your question is 1.176 seconds

MIDDLE SCHOOL

How many states have 21 year old minimum drinking age laws

Answers

All 50 states have a 21 year old minimum drinking age according to the national drinking age act of 1984.

By mid-1988, all 50 states and the District of Columbia had raised their purchase ages to 21 (but not Puerto Rico, Guam, or the Virgin Islands, see Additional Notes below). South Dakota and Wyoming were the final two states to comply with the age 21 mandate.

Have a nice day
HIGH SCHOOL

Oxygen is more reactive than nitrogen.

True
False

Answers

Oxygen is more reactive than nitrogen. Because triple bond between two atoms of nitrogen and there is double bond between two atoms of oxygen.Therefore, this statement is true.

What do you mean by the reactivity ?

Reactivity is a substance's capacity to chemically react with other compounds. Iron, for instance, reacts vigorously with oxygen. Rust is a reddish powder that is created when it reacts with oxygen.

Because nitrogen has a higher dissociation energy than oxygen, its reactivity is lower than that of oxygen at the molecular level. Due to the triple bond that exists between the nitrogen atoms, the bond length of nitrogen is also shorter than that of oxygen.

Due to the strong triple bond between the atoms, the fact that all the valence electrons are in bonding orbitals, and the fact that more energy is required to excite them, Nitrogen is less reactive than Oxygen in the majority of gaseous processes.

Thus, Oxygen is more reactive than nitrogen.

To learn more about the reactivity, follow the link;

brainly.com/question/1598581

#SPJ2

This is a True statement.

N2 is less reactive than O2 in most gaseous reactions because there is a strong triple bond between the atoms, all the valence electrons are in bonding orbitals, and more energy is needed to excite them.
MIDDLE SCHOOL

A: Transformers work with either AC or DC electricity. True/False B: Power companies use high voltages to reduce power loss over long transmission distances. True/False
C: A(n) __________________ uses electromagnetic induction to increase or decrease voltage.
D: Materials that lose all electrical resistance at low temperatures are known as ____________________ and are ideal for constructing powerful electromagnets.
E: An electric device that uses an electromagnet to open and close a switch is a(n) ___________________.

Answers

The answers are as follows:

A.      False –  Transformers are designed to work on AC

B.      True – This is to compensate the losses as the length of wire increases

C.      Transformer – the transformer works in the principle of electromagnetic induction

D.      Superconducting Magnet – magnet made from coils of a superconducting wire

E.       Relay – This electrical switch is operated by a magnet

HIGH SCHOOL

What would tweezers be used for in a first-aid kit? A. To remove objects from the eye
B. To remove a splinter from the hand
C. To pull back skin from a wound
D. To set a stress fracture

Answers

The answer is B.-to remove a splinter from a hand
B to remove a splinter from the hands. Tweezers can be used to remove debris in the wound such as glass, splinter or dirt.  
HIGH SCHOOL

To measure the strength of an earthquake, you can use either a _____ scale or _____ scale. does anyone have the choices or know the answer

Answers

To measure the strength of an earthquake, you can use either a Richter scale or Mercalli scale. Richter scale uses the amplitued of the wave and the distance from the source. Mercalli scale uses observations of people and is not considered to be scientific as Richter scale.

Earthquakes are measured with the Richter Magnitude Scale developed by Charles F. Richter of California Institute of Technology in 1935. Here is a summary of the Richter scale:

Magnitude less than 3.5: Generally not felt, but recorded.

Magnitude 3.5-5.4: Often felt, but rarely causes damage.

Magnitude under 6.0: At most slight damage to well-designed buildings over small regions.

Magnitude 6.1-6.9: Can be destructive in areas up to 100 kilometers across where people live.

Magnitude 7.0-7.9: Major earthquake. Can cause serious damage over larger areas.

Magnitude 8 or greater: Great earthquake. Can cause serious damage in areas several hundred kilometers across.

Earthquakes are also measured by the Mercalli Intensity Scale which is a longer, more detailed scale. Both the Richter Scale and the Mercalli Scale can be seen on the U.S. Geological Survey website.



COLLEGE

As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted on the floor by the heel if it has an area of 1.64 cm2 and the woman's mass is 67.0 kg. Express the pressure in pascals. (In the early days of commercial flight, women were not allowed to wear high-heeled shoes because aircraft floors were too thin to withstand such large pressures.)

Answers

Answer:4.003 MPa

Explanation:

Given

Area of heel

Mass of woman

Pressure is defined as Force applied in over an area such that it is perpendicular to it i.e.

MIDDLE SCHOOL

What is a small particle of an atom carries a neutral charge?

Answers

It is found, with the positively charge protons in the central nucleus of the atom, while the negatively charges electrons rotate in orbits (Shells) around it.

Electron with a charge of -1

Electron- carries a negative energy
HIGH SCHOOL

The radius of an atom is closest in size to a

Answers

the radius of the entire atom was 0.00000001 cm.

From all the choices available in that question, it's closest in size to the dot over the ' i ' in the words "radius", "is" and "in".

Random Questions