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
Leni [432]
3 years ago
12

After examining a sequence of horizontal sedimentary rocks, a geologist determines that there is a considerable span of time for

which no sedimentary rock layers exist at this location. The geologist discovered _____.
a. a sequence of correlated strata
b. a disconformity
c. a nonconformity
d. an angular unconformity
Physics
2 answers:
MAVERICK [17]3 years ago
7 0
The geologist discovered is likely a disconformity. The correct letter of the answer is letter B. It is because as the geologist found that there are no sedimentary rock layers exist, it means that he discovers disconformity, where it means that the sedimentary sequence has brought to break.
WARRIOR [948]3 years ago
6 0
I'm not 100 percent sure but I think the correct answer is B. Disconformity.
You might be interested in
The circumference of a sphere was measured to be
professor190 [17]

To solve this problem we will apply the concepts related to the calculation of the surface, volume and error through the differentiation of the formulas given for the calculation of these values in a circle. Our values given at the beginning are

\phi = 76cm

Error (dr) = 0.5cm

The radius then would be

\phi = 2\pi r \\76cm = 2\pi r\\r = \frac{38}{\pi} cm

And

\frac{d\phi}{dr} = 2\pi \\d\phi = 2\pi dr \\0.5 = 2\pi dr

PART A ) For the Surface Area we have that,

A = 4\pi r^2 \\A = 4\pi (\frac{38}{\pi})^2\\A = \frac{5776}{\pi}

Deriving we have that the change in the Area is equivalent to the maximum error, therefore

\frac{dA}{dr} = 4\pi (2r) \\dA = 4r (2\pi dr)

Maximum error:

dA = 4(\frac{38}{\pi})(0.5)

dA = \frac{76}{\pi}cm^2

The relative error is that between the value of the Area and the maximum error, therefore:

\frac{dA}{A} = \frac{\frac{76}{\pi}}{\frac{5776}{\pi}}

\frac{dA}{A} = 0.01315 = 1.31\%

PART B) For the volume we repeat the same process but now with the formula for the calculation of the volume in a sphere, so

V = \frac{4}{3} \pi r^3

V = \frac{4}{3} \pi (\frac{38}{\pi})^3

V = \frac{219488}{3\pi^2}

Therefore the Maximum Error would be,

\frac{dV}{dr} = \frac{4}{3} 3\pi r^2

dV = 2r^2 (2\pi dr)

dV = 4r^2 (\pi dr)

Replacing the value for the radius

dV = 4(\frac{38}{\pi})^2(0.5)

dV = \frac{2888}{\pi^2} cm^3

And the relative Error

\frac{dV}{V} = \frac{ \frac{2888}{\pi^2}}{ \frac{219488}{3\pi^2} }

\frac{dV}{V} = 0.03947

\frac{dV}{V} = 3.947\%

3 0
3 years ago
The word photokinetic means “moving in response to light”. Why does this make sense based on the two main parts (morphemes) in t
Ira Lisetskai [31]

Explanation:

photo means light in latin

kinetic means to move

6 0
3 years ago
Does the mass of a parachute affect terminal velocity?
vovangra [49]

Answer:

The greater weight increases the terminal velocity by acting as an extra force against gravity and air resistance.

6 0
3 years ago
Most of earths seasonal earthquakes are caused by
Dahasolnce [82]
<span>Most of earths seasonal earthquakes are caused by "Revolution of Earth around the Sun"

Hope this helps!</span>
3 0
3 years ago
Calculate the height from which a body is released rest if its velocity just before hitting the ground is 30ms-1
SOVA2 [1]

Answer:

45.9m

Explanation:

Given parameters:

Final velocity  = 30m/s

Initial velocity  = 0m/s

Unknown:

Height of fall  = ?

Solution:

  The motion equation to solve this problem is given below;

            V² = U² + 2gH

            V²  = 0 + (2 x 9.8 x H)

           30²  = 19.6H

              H = \frac{900}{19.6}   = 45.9m

4 0
3 years ago
Other questions:
  • What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s?
    8·1 answer
  • A 111 ‑turn circular coil of radius 2.11 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicu
    10·1 answer
  • What kind of organisms are able to convert sunlight into usable energy?
    9·2 answers
  • A 16.0kg canoe moving to the left at 12.5m/s makes an elastic head-on collision with a 14.0kg raft moving to the right at 16.0m/
    7·1 answer
  • How much work is accomplished when a force of 300N pushes a box across the floor for a distance of 100 meters?
    13·2 answers
  • Suppose that during a test drive of two​ cars, one car travels 224 miles in the same time that a second car travels 160 miles. I
    5·1 answer
  • In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The sola
    14·1 answer
  • A toy plane with a mass of 20 kg is flying at 10 m/s. What is its kinetic energy?
    11·2 answers
  • A 20 kg shopping cart moving at a velocity of 0.5 m/s collides with a store wall and
    13·1 answer
  • Describe the graph of a bee’s motion if it leaves its hive in the positive direction, slows to visits a flower, then speeds up t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!