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
krok68 [10]
3 years ago
5

Of the three primary forms of subaerial volcanoes, ________ are large cone-shaped mountains that consist of alternating layers o

f tephra and solidified lava.
Physics
1 answer:
Alborosie3 years ago
5 0

Answer:

Strato-volcano

Explanation:

Strato-volcanoes are usually characterized by the presence of steep-sided slopes, with distinct craters, and are frequently erupted and conical in appearance. This type of volcano is generally felsic in nature. Due to the presence of high silica content, the magma being highly viscous, moves at a relatively slower rate. These are highly explosive and produce a large number of pyroclastic materials, lava flow, volcanic ashes, and gases.

They are also commonly considered as the composite volcano, and are comprised of alternating tephra and solidified lava layers.

You might be interested in
Question 1 (5 points)
Elza [17]

Answer:

Velocity

Explanation:

Velocity is a speed with a direction.

7 0
3 years ago
suppose you are designing a device to transmit information without wires what part of the EM spectrum will your device use and w
miv72 [106K]
My device will use either radio waves or light waves.
Those are the only EM waves I'm equipped to generate.

If I want to get elegant about it, I may use radio waves with
frequencies around 14.1 MHz, because those can be received
many thousands of miles away.  I know how to build an effective
antenna to radiate at that frequency, and as a licensed ham-radio
operator, I can do it legally. 
5 0
4 years ago
A person sees in the distance a lightning bolt pass close to a low flying airplane. The person hears thunder 5.6 s after seeing
Ratling [72]

Answer:

Explanation:

velocity v = Δx/Δt

Δx is the change in displacement

Δt is the change in time

Δx = vΔt

Given v = 1100ft/s

Δt = t2-t1

Δt = 13-5.6

Δt =  7.4s

Δx = 1100*7.4

Δx = 8,140ft

Hence the distance of the airplane from the person at the instant of the bolt is 8,140ft

Since the air moves at constant speed, it means the speed is not chnaging hence the velocity of the air v is the same as the constant speed.

velocity of the airplane vp = Δx/Δt

Δx = 8,140ft

Δt = t2+t1

Δt = 13+5.6

Δt = 18.6s

Substituting the given values into the formula vp = Δx/Δt

vp = 8,140/18.6

vp = 437.63m/s

Hence the velocity of the airplane is 437.63m/s

5 0
3 years ago
A parking lot charges 3 dollars for the first hour (or part of an hour) and 2 dollars for each succeeding hour (or part), up to
Aneli [31]

Answer:

function is discontinuous

and

after 3 hours upto day 24 hours fix charge $10

so there are discontinuous at 1st hour, 2nd hours and 3rd hours

Explanation:

given data

charge = $3 for 1st hour

charge = $2 for each succeeding hour

maximum charge = $10 daily

to find out

Is this function continuous

solution

their function is 3 +2x

so function is discontinuous here

and

this is very clear for 1st hour or part of hour it mean charge a fix value in given time

anyone who park fix charge for 60 min up to the 3 hours

after that for day 24 hours fix charge $10

so there are discontinuous at 1st hour, 2nd hours and 3rd hours

6 0
3 years ago
A 1500 kg car traveling east at 40 km/hr turns a corner and speeds up to a velocity of 50 km/hr due north. What is the change in
AlexFokin [52]

Answer:

Change in momentum is 2.667\times 10^{4} kg.m/s

Solution:

The momentum of any body is the product of its mass and the velocity associated with the body and is generally given by:

\vec{p} = m\vec{v}

Now, as per the question:

Mass of the car, M = 1500 kg

The velocity in the east direction, v\hat{i} = 40\hat{i} km/h

The velocity in the north direction, v\hat{j} = 50\hat{j} km/h

Now, the momentum of the car in the east direction:

p\hat{i} = mv\hat{i} = 1500\times 40\hat{i} = 60000\hat{i} kg.km/h

Now, the momentum of the car in the north direction:

p\hat{j} = mv\hat{j} = 1500\times 50\hat{j} = 75000\hat{j} kg.km/h

Change in momentum is given by:

\Delta p = p\hat{i} - p\hat{j} = 60000\hat{i} - 75000\hat{j}

Now,

|\Delta p| = |60000\hat{i} - 75000\hat{j}|

|\Delta p| = \sqrt{60000^{2} + 75000^{2}}

|\Delta p| = 96046 kg.km/hr = \frac{96046}{3.6} = 2.667\times 10^{4} kg.m/s

(Since, 1kg.km/h = \frac{1}{3.6} kg.m/s)

4 0
3 years ago
Other questions:
  • The pressure, p, of water (in pounds per square foot) at a depth of d feet below the surface is given by the formula p=15+15/33d
    5·2 answers
  • Define valence electrons
    14·2 answers
  • . A pulsar is a type of __________ that rotates very rapidly and emits electromagnetic radiation.. . . protostar. . red giant. .
    12·2 answers
  • A 1.70-μF capacitor is charging through a 14.0-Ω resistor using a 10.0- V battery. What will be current when the capacitor has a
    15·2 answers
  • The outer layer of bone _____.
    14·1 answer
  • What is the terminal velocity of a penny falls off a skyscraper
    10·1 answer
  • You are given a vector in the xy plane that has a magnitude of 84.0 units and a y-component of -67.0 units.
    7·1 answer
  • What is one way that an electric field is different from a magnetic field?
    9·1 answer
  • Is this right? Please help me
    6·1 answer
  • 1. What is a conversion factor?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!