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
leva [86]
3 years ago
5

Due to the intense heat and pressure on the inner core, scientists believe it is a A.solid B.liquid C.semi-fluid D.gas

Physics
2 answers:
SSSSS [86.1K]3 years ago
4 0

Answer:

A. solid    

Explanation:

There is intense pressure and heat on the inner core. With so much heat, it should be liquid but the pressure over rides the heat effect and scientists believe that the inner core is solid. The inner core mainly consists of iron. With increase in pressure, the melting point of Iron also increases. Thus, in spite so intense heat, the inner core is solid while the outer core is liquid.

The correct option is A.

nexus9112 [7]3 years ago
3 0
The Answer Is Solid, But The Inner Core Is Surrounded By A Liquid Outer Core
Hope This Helps
You might be interested in
A student in the front of a school bus tosses a ball to another student in the back of the bus while the bus is moving forward a
Veronika [31]

Answer:

d

Explanation:

good question. now the bus is moving in constant velocity . a student in front tosses a ball to the student in back. but we dont know the speed at which the student tosses a ball. we have to assume the speed

assume the speed of ball is slightly less than the speed of bus. in this case the stationary observer sees the ball in slower speed than the one inside the bus.

so a is correct

now assume the speed of ball is 1/2 the speed of bus. here stationary observer sees the ball the same speed as the one in bus observe

b is correct

assume the speed of ball is very small than the speed of bus . in this case the stationary observer see in grater speed than the student in bus

e also correct

so correct answer is d. it depends on the speed of ball tossed by the student in front.

6 0
4 years ago
A door has a height of 2.1 m along a y axis that extends vertically upward and a width of 0.975 m along an x axis that extends o
Misha Larkins [42]

Answer:

\vec{F_T} = \vec{F_B} = 142.245 N downward

Explanation:

As each hinge supports half the door mass, which is 29kg, then each of them are subjected to 29/2 = 14.5 kg of door mass. Let g = 9.81 m/s2, the weight on each hinge would be:

W = mg = 14.5*9.81 = 142.245 N acting downward

In unit-vector notation, the force vectors on the top and the bottom hinges are:

\vec{F_T} = \vec{F_B} = 142.245 N downward

8 0
4 years ago
If a car travels 60 M /hr for 10 hours.<br> What distance will it travel?
Alexandra [31]

Answer:

600 miles

Explanation:

60x10

5 0
3 years ago
¿Cómo se transforma la energía por eso uso de sistemas amortiguados en una bicicleta?
Goryan [66]

Answer:

No cheating: you’re starring in a movie w/ the last person saved in your camera roll and the last song you listened to is the title.

"let's go everywhere" the movie with taemin and taeyong sounds like something i would watch ♡ https://t.co/tGdUt7CKPc

8 0
3 years ago
Suppose that we use a heater to boil liquid nitrogen (N2 molecules). 4480 J of heat turns 20 g of liquid nitrogen into gas. Note
love history [14]

Answer:

The energy is 9.4\times10^{-21}\ J

(a) is correct option

Explanation:

Given that,

Energy = 4480 j

Weight of nitrogen = 20 g

Boil temperature = 77 K

Pressure = 1 atm

We need to calculate the internal energy

Using first law of thermodynamics

Q=\Delta U+W

Q=\Delta U+nRT

Put the value into the formula

4480=\Delta U+\dfrac{20}{28}\times8.314\times77

\Delta U=4480-\dfrac{20}{28}\times8.314\times77

\Delta U=4022.73\ J

We need to calculate the number of molecules in 20 g N₂

Using formula of number of molecules

N=n\times \text{Avogadro number}

Put the value into the formula

N=\dfrac{20}{28}\times6.02\times10^{23}

N=4.3\times10^{23}

We need to calculate the energy

Using formula of energy

E=\dfrac{\Delta U}{N}

Put the value into the formula

E=\dfrac{4022.73}{4.3\times10^{23}}

E=9.4\times10^{-21}\ J

Hence, The energy is 9.4\times10^{-21}\ J

4 0
3 years ago
Other questions:
  • A record player turntable initially rotating at 3313 rev/min is braked to a stop at a constant rotational acceleration. The turn
    12·1 answer
  • Which process must occur for clouds to form?
    13·1 answer
  • During refraction, waves bend when they pass from one medium to another. The waves refract because their ________ changes. A) ap
    10·2 answers
  • Doing aerobic exercise is most important because it
    15·1 answer
  • Which statement best compares momentum and kinetic energy?
    12·2 answers
  • Plate tectonics is unique to which terrestrial planet?
    12·2 answers
  • What is a transformer​
    13·2 answers
  • Newton's second law of motion is F = ma.
    15·2 answers
  • A javelin is thrown at 28.5 m/s from flat
    11·2 answers
  • An object with a mass of 4.91 kg rests on a plane inclined 42.34 ° from horizontal. What is the component of the weight force th
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!