1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kamila [148]
3 years ago
7

Consider the substance represented by the heating curve. What is the MOST accurate conclusion can you draw about the vaporizatio

n of the substance?
A) Heat of fusion equals heat of vaporization.
B) The melting point is half the boiling point.
C) It takes the substance longer to vaporize than it does to condense.
D) It requires much more energy to vaporize the substance than to melt it

Physics
1 answer:
tino4ka555 [31]3 years ago
4 0
The answer is D. it requires much more energy
You might be interested in
Calculate the resultant force acting in the opposite directions:-<br><br><br><br> answer asap
kap26 [50]

Answer:

Magnitude of the resultant force will be 20N in the direction of F_2.

Explanation:

It's given in the question that two forces have been applied on the object given.

Since force is a vector quantity, therefore, it has magnitude and direction both.

F_1=20N

F_2=40N

Both the forces are in the opposite directions.

Therefore, magnitude of the resultant force of these forces will be,

F_2-F_1=40-20

            = 20 N

And the direction of the resultant force will be towards F_2.

Therefore, magnitude of the resultant force will be 20N in the direction of F_2.

3 0
3 years ago
The aorta is approximately 25 mm in diameter. The mean pressure there is about 100 mmHg and the blood flows through the aorta at
Ksenya-84 [330]

Answer:

Explanation:

25 mm diameter

r₁  = 12.5 x 10⁻³ m radius.

cross sectional area =  a₁

Pressure P₁  = 100 x 10⁻³ x 13.6 x 9.8 Pa

a )

velocity of blood v₁ = .6 m /s

Cross sectional area at blockade = 3/4 a₁

Velocity at blockade area = v₂

As liquid is in-compressible

a₁v₁ = a₂v₂

a₁ x .6 m /s  = 3/4 a₁ v₂

v₂ = .8m/s

b )

Applying Bernauli's theorem formula

P₁ + 1/2 ρv₁² =  P₂ +  1/2 ρv₂²

100 x 10⁻³ x 13.6 x10³x 9.8 + 1/2 X 1060 x .6² = P₂ +  1/2x 1060 x .8²

13328 +190.8 = P₂ + 339.2

P₂ = 13179.6 Pa

= 13179 / 13.6 x 10³ x 9.8 m of Hg

P₂ =  .09888 m of Hg

98.88 mm of Hg

8 0
4 years ago
A physical property of gold is its
Irina18 [472]
Gold<span> is both malleable and ductile.</span>
8 0
3 years ago
A mechanic jacks up the front of a car to an angle of 8.0° with the horizontal in order to change the front tires. the car is 3.
Zina [86]
<span>First draw a free-body diagram. Torque T = Force F x Distance d where force is the component of gravitational force g and d is the lever arm distance to the pivot point. Since the pivot point is at the back tire we subtract that from the length of the car resulting in d = 1.12 - 0.40 = 0.72 meters = d. We are interested in the perpendicular component of the force exerted on the car jack so use sin 8 degrees then T=1130 kg x 9.81 m/s^2 x sin(8 degrees) x0.72 m = 1,110.80 Newton-meters</span>
5 0
4 years ago
Express 1010 miners in examiners. Answer in units of Eminer.
Lady_Fox [76]
Since 1 examiner = 10^18miner
then 10^10miners =10^(10-18)=10^-8examiner
7 0
3 years ago
Other questions:
  • Which statement correctly compares sound and light waves?
    14·2 answers
  • A wave has a low speed but a high frequency. What can you infer about its wavelength?
    6·1 answer
  • PLZ HELP
    6·1 answer
  • Which action results from the combination of gravity and inertia working on the moon
    10·2 answers
  • Something that allows electrons to flow easily through it is called
    12·2 answers
  • What is the electric flux through a sphere that has a radius of 1.00 m and carries a charge of +4.00 µC at its center?
    12·1 answer
  • assuming 100% efficient energy conversion how much water stored behind a 50 centimeter high hydroelectric dam would be required
    13·1 answer
  • A car has wheels which spin forwards. As the wheels spin forwards, they grip the road and push the road backwards. Since forces
    13·2 answers
  • Water in an electric teakettle is boiling. The power absorbed by the water is 0.90 kW. Assuming that the pressure of vapor in th
    10·1 answer
  • MA seconds class lever always more than 1​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!