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
Gekata [30.6K]
3 years ago
10

Can some one please answers number 4

Physics
1 answer:
Maru [420]3 years ago
5 0
I think it is the core and outer core. 
hope this helped. 
You might be interested in
Someone help im boredd
Oduvanchick [21]

Answer:

ok what is the question you need help with

Explanation:

:)

6 0
2 years ago
Read 2 more answers
Density is calculated by combining 2 units, therefore the unit we use to measure density is called a _____________________unit.
nalin [4]

Answer: Dependent Unit or System of Units

Explanation:

Density is calculated by dividing mass (Kg) by volume (L).

The unit of Density is Kg/L or one of their derivatives such as g/cm³.

8 0
2 years ago
A supersonic nozzle is also a convergent–divergent duct, which is fed by a large reservoir at the inlet to the nozzle. In the re
Lady_Fox [76]

Answer:

155.38424 K

2.2721 kg/m³

Explanation:

P_1 = Pressure at reservoir = 10 atm

T_1 = Temperature at reservoir = 300 K

P_2 = Pressure at exit = 1 atm

T_2 = Temperature at exit

R_s = Mass-specific gas constant = 287 J/kgK

\gamma = Specific heat ratio = 1.4 for air

For isentropic flow

\frac{T_2}{T_1}=\frac{P_2}{P_1}^{\frac{\gamma-1}{\gamma}}\\\Rightarrow T_2=T_1\times \frac{P_2}{P_1}^{\frac{\gamma-1}{\gamma}}\\\Rightarrow T_2=00\times \left(\frac{1}{10}\right)^{\frac{1.4-1}{1.4}}\\\Rightarrow T_2=155.38424\ K

The temperature of the flow at the exit is 155.38424 K

From the ideal equation density is given by

\rho_2=\frac{P_2}{R_sT_2}\\\Rightarrow \rho=\frac{1\times 101325}{287\times 155.38424}\\\Rightarrow \rho=2.2721\ kg/m^3

The density of the flow at the exit is 2.2721 kg/m³

4 0
3 years ago
[BWS.02]If the same experiment is repeated in different parts of the world by different scientists,
guajiro [1.7K]

Answer:

the results will be the same.it may be

7 0
3 years ago
What can we say about microwaves<br> waves on the electromagnetic spectrum?
Elena L [17]

Answer:

Microwaves fall in the range of the EM spectrum between radio and infrared light.

Explanation:

4 0
3 years ago
Other questions:
  • If a boat and its riders have a mass of 900 kg and the boat drifts in at 1.4 m/s how much work does sam do to stop it?
    14·1 answer
  • Large-scale environmental catastrophes _______.
    13·1 answer
  • How much heat is required to convert 5.53 g of ice at -12.0 ∘C to water at 24.0 ∘C? (The heat capacity of ice is 2.09 J/(g⋅∘C),
    6·1 answer
  • The velocity of sound on a particular day outside is 331 meters/second. What is the frequency of a tone if it has a wavelength o
    6·2 answers
  • Water flows through a water hose at a rate of Q1 = 860 cm3/s, the diameter of the hose is d1 = 1.85 cm. A nozzle is attached to
    11·1 answer
  • Gina's teacher says that Jupiter has a much greater gravitational force than Earth, while the Moon has a much smaller force. How
    6·1 answer
  • A stuntwoman is going to attempt a jump across a canyon that is 77 m wide. The ramp on the far side of the canyon is 25 m lower
    15·1 answer
  • What is the term for the ability to cause change in matter?
    6·1 answer
  • An isolated system consists of two particles shown above. Particle 1 has charge +q and mass m. Particle 2 has charge +2q and mas
    9·1 answer
  • tourist travels 1500 miles using two planes. The second plane averages 50 miles per hour faster than the first plane. The touris
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!