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
Bas_tet [7]
3 years ago
5

Which of these is formed by a hot spot in Earth's crust?

Physics
2 answers:
Alexxx [7]3 years ago
7 0

Answer:

A hot spot is a region deep within the Earth's mantle from which heat rises through the process of convection. This heat facilitates the melting of rock. The melted rock, known as magma, often pushes through cracks in the crust to form volcanoes.

dimulka [17.4K]3 years ago
5 0

Answer:

we need to know what the choices are?

Explanation:

You might be interested in
Assume you have a rocket in Earth orbit and want to go to Mars. The required change in velocity is ΔV≈9.6km/s . There are two op
Nostrana [21]

Answer: Part 1: Propellant Fraction (MR) = 8.76

Part 2: Propellant Fraction (MR) = 1.63

Explanation: The Ideal Rocket Equation is given by:

Δv = v_{ex}.ln(\frac{m_{f}}{m_{e}} )

Where:

v_{ex} is relationship between exhaust velocity and specific impulse

\frac{m_{f}}{m_{e}} is the porpellant fraction, also written as MR.

The relationship v_{ex} is: v_{ex} = g_{0}.Isp

To determine the fraction:

Δv = v_{ex}.ln(\frac{m_{f}}{m_{e}} )

ln(MR) = \frac{v}{v_{ex}}

Knowing that change in velocity is Δv = 9.6km/s and g_{0} = 9.81m/s²

<u>Note:</u> Velocity and gravity have different measures, so to cancel them out, transform km in m by multiplying velocity by 10³.

<u />

<u>Part 1</u>: Isp = 450s

ln(MR) = \frac{v}{v_{ex}}

ln(MR) = \frac{9.6.10^{3}}{9.81.450}

ln (MR) = 2.17

MR = e^{2.17}

MR = 8.76

<u>Part 2:</u> Isp = 2000s

ln(MR) = \frac{v}{v_{ex}}

ln (MR) = \frac{9.6.10^{3}}{9.81.2.10^{3}}

ln (MR) = 0.49

MR = e^{0.49}

MR = 1.63

8 0
3 years ago
Which term describes the number of troughs that pass a point in a given amount of time?
artcher [175]

Answer:

Frequency (f) can be defined as the number of waves or crests or number of troughs that pass a point per unit second. It can be measured in Hertz (Hz) or 1/s.

6 0
3 years ago
How can alleles be different?
galina1969 [7]

Answer:

Explanation:

alleles are the different form of certain gene, and for each gene, you have two alleles, one from each parent. For example, you have two alleles for your eye color, let's say a brown allele and a blue allele (genotype Bb) but your physical appearance would be brown eyes (phentotype)

7 0
3 years ago
How does putting a mirror on a sharp bend help to prevent accidents
timofeeve [1]
It allows people to see around the corner and anticipate what speed changes they will need to make
6 0
3 years ago
Read 2 more answers
(NEED HELP ASAP) Which direction will the object move when forces are applied?
Ivahew [28]

Answer:

South

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • A deuteron (the nucleus of an isotope of hydrogen) has a mass of 3.34×10−27 kgkg and a charge of 1.60×10−19 CC . The deuteron tr
    6·1 answer
  • 1. Describe what must happen to an atom to make it
    13·1 answer
  • What factors determine whether a species can be present in a place
    13·1 answer
  • A hot metal bolt of mass 0.06 kg and specific heat capacity 899 J/kg°C is dropped into a calorimeter containing 0.16 kg water at
    6·1 answer
  • Products must equal which in a chemical reaction?
    10·1 answer
  • Can an organ system function properly without working tissues?
    7·1 answer
  • A woman is applying 300N/m2 of pressure on to door with her hand. Her hand has area of 0.02m2. Work out the force being applied​
    12·1 answer
  • Suzie is riding a merry-go-round that is 3.5 m in diameter. If she travels 12 revolutions in a minute, what is her velocity?
    8·1 answer
  • Which choice is a potential drawback of nanotechnology? Check all that apply.
    12·2 answers
  • From your ____ chest to your___ shoulders you must have been wearing
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!