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
alisha [4.7K]
3 years ago
11

What does the geology of the two continents indicate about past events in Earth history?

Physics
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

Explanation:

Rocks tell us a great deal about the Earth's history. Igneous rocks tell of past volcanic episodes and can also be used to age-date certain periods in the past. Sedimentary rocks often record past depositional environments (e.g deep ocean, shallow shelf, fluvial) and usually contain the most fossils from past ages.

You might be interested in
how does the size of objects impact the pull of gravity between Earth and a baseball thrown into the air
Reil [10]
it's how much it weighs and how much force is pushing on it like a egg if i drop it the weigh can cause it to break and how much force the gravity is pushing on it.
3 0
2 years ago
Read 2 more answers
A sailboat sits tied up at the dock.
shutvik [7]

Answer:B

Explanation:i think so im not suree

5 0
2 years ago
A solid sphere of radius 40.0 cm has a total positive charge of 16.2 μC uniformly distributed throughout its volume. Calculate t
Jobisdone [24]

Answer:

(a) E=0  :   0 cm from the center of the sphere

(b) E= 227.8*10³ N/C   :    10.0 cm from the center of the sphere

(c)E= 911.25*10³ N/C    :    40.0 cm from the center of the sphere

(d)E= 411.84 * 10³ N/C  :    59.5 cm from the center of the sphere

Explanation:

If we have a uniform charge sphere we can use the following formulas to calculate the Electric field due to the charge of the sphere

E=\frac{K*Q}{r^{2} } : Formula (1) To calculate the electric field in the region outside the sphere r ≥ a

E=k*\frac{Q}{a^{3} } *r :Formula (2) To calculate the electric field in the inner region of the sphere. r ≤ a

Where:

K: coulomb constant

a: sphere radius

Q:  Total sphere charge

r : Distance from the center of the sphere to the region where the electric field is calculated

Equivalences

1μC=10⁻⁶C

1cm= 10⁻²m

Data

k= 9*10⁹ N*m²/C²

Q=16.2 μC=16.2 *10⁻⁶C

a= 40 cm = 40*10⁻²m = 0.4m

Problem development

(a)Magnitude of the electric field at  0 cm :

We replace r=0 in the formula (2) , then, E=0

(b) Magnitude of the electric field at 10.0 cm from the center of the sphere

r<a , We apply the Formula (2):

E=9*10^{9} *\frac{16.2*10^{-6} }{0.4^{3} } *0.1

E= 227.8*10³ N/C

(c) Magnitude of the electric field at 40.0 cm from the center of the sphere

r=a, We apply the Formula (1) :

E=\frac{9*10^{9}*16.2*10^{-6} }{0.4^{2} }

E= 911.25*10³ N/C

(d) Magnitude of the electric field at 59.5 cm from the center of the sphere  

r>a , We apply the Formula (1) :

E=\frac{9*10^{9}*16.2*10^{-6} }{0.595^{2} }

E= 411.84 * 10³ N/C

4 0
3 years ago
PLEASE HELP I need the answer to this question ASAP
cestrela7 [59]

Answer:

answer is A

Explanation:

hope this helps!

7 0
2 years ago
Read 2 more answers
If 2.0 j of work is requiered to move 4 c of chsrge between two points in an electric firld, what is the potential difference be
djverab [1.8K]
2 J / 4 C = 1/2 joule per coulomb.

That's 1/2 volt.
5 0
3 years ago
Other questions:
  • •1 if a saturn v rocket with an apollo spacecraft attached had a combined mass of 2.9 × 105 kg and reached a speed of 11.2 km/s,
    12·1 answer
  • Write the law of conservation of energy. How does it apply to eating and exercising?
    5·1 answer
  • How far will a runner travel at an average speed of 5m/s for 20 minutes?
    11·1 answer
  • Two parallel wires are separated by 6.10 cm, each carrying 2.85 A of current in the same direction. (a) What is the magnitude of
    5·1 answer
  • Which sequence shows electromagnetic waves arranged from shorter to longer wavelengths?. A. visible light, infrared radiation, m
    13·2 answers
  • During a circus performance, a 71.2-kg human cannonball is shot out of an 18.0-m-long cannon. If the human cannonball spends 0.7
    14·1 answer
  • Two people on skateboards, Brian and Amy, push off from each other. Brian has more mass than Amy. Who experiences a larger force
    7·1 answer
  • A battery is used to power a flashlight. When the flashlight is in use, what type of energy is lost during energy transformation
    8·2 answers
  • Thank you for helppp
    6·1 answer
  • The mechanical advantage of a simple machine is 3 and its velocity ratio is 4 find its efficiency ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!