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
blsea [12.9K]
3 years ago
6

Which of the following statements about igneous rocks is correct?

Physics
1 answer:
g100num [7]3 years ago
3 0
Although you have not provided the possible answers, igneous rocks are formed out of magma or lava, with or without crystals, and they can be found either on the surface or under it. This is a basic description of the type of rocks, so it might fit some of the answers you may have.
You might be interested in
The greatest obstacle to developing solar energy is _____. lack of sunlight at high latitudes lack of sunlight at night lack of
KATRIN_1 [288]
The correct answer is option #4. The greatest obstacle to developing solar energy is large areas required to collect sufficient energy. Solar energy is the energy that is the sun is producing and being converted into thermal energy that can be used for everyone's daily lives.
3 0
2 years ago
Read 2 more answers
A car is moving in uniform circular motion. If the car's speed were to double to keep the car moving with the same radius, the a
Anestetic [448]

Answer:

Increase by a factor of 4.

Explanation:

The acceleration of a car moving with speed v in a circle of radius R is given by:

a=\frac{v^2}{R}.

Now if we double the speed v in the equation above, it becomes 2v. Thus:

a=\frac{v^2}{R}\:\: {\rightarrow}\:\: a_n=\frac{(2v)^2}{R}=4\frac{v^2}{R}=4a.

Therefore the acceleration is increased by a factor of 4.

7 0
3 years ago
Can a runner's average speed be different from her average velocity?
Tomtit [17]

Answer:

Yes

Explanation:

Since velocity is a vector, meaning it also relies on direction, the average speed can be different from her average velocity. An example would be if a runner turned around and ran backward after running 10 meters and returned to her starting point. If you took her average velocity of the entire trip it would actually be 0 but her average speed obviously would not be. This is why velocity can be negative but speed cannot.

5 0
2 years ago
A machine does 1000 J of output work when 2000 J of work is input. THe efficiency is
HACTEHA [7]
Efficiency = 1000/2000 = 0.5 = 50%
6 0
3 years ago
Question 5 (1 point)
Tom [10]

Answer: 18000 coulombs

Explanation:

Given that:

Current, I = 5.0A

Electric charge Q = ?

Time, T = 1 hour

(The SI unit of time is seconds. So, covert 1.0 hour to seconds)

If 1 hour = 60 minutes and 60 seconds = 1 minute

Then, 1.0 hour = (60 x 60)

= 3600 seconds

Since electric charge, Q = current x time

i.e Q = I x T

Q = 5.0 A x 3600 seconds

Q = 18000 coulombs

Thus, 18000 coulombs of charge flows through the lamp in this time.

4 0
3 years ago
Other questions:
  • Which observation BEST supports evidence that two different species share a common ancestor? A) they both prey on the same anima
    11·2 answers
  • Northrop aircraft developed and built a deceleration sled to test the effects of the extreme forces on humans and equipment. In
    7·1 answer
  • Indicar cuando se sanciona y como se ejecuta: un saque de centro,
    7·1 answer
  • In a football game, a 90 kg receiver leaps straight up in the air to catch the 0.42 kg ball the quarterback threw to him at a vi
    14·1 answer
  • Which layer of the atmosphere is between the mesosphere and the exosphere?
    13·2 answers
  • A crate weighing 523 N rests on a plank that makes a 22.0  angle with the ground. Find the components of the crate's weight for
    10·1 answer
  • What is a volt as applied in physics ​
    15·1 answer
  • According to the law of conservation of energy, which statement must be
    13·1 answer
  • Benita is studying the erosion of soil after a heavy rainfall. She observes that rainwater washes away very little soil from are
    11·1 answer
  • Explain the terms boiling and boiling point.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!