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
trasher [3.6K]
3 years ago
13

Which intrusive igneous rock could be composed of approximately 60% pyroxene, 25% plagioclase feldspar, 10% olivine, and 5% amph

ibole?
(1) granite
(2) rhyolite
(3) gabbro
(4) basalt
Physics
1 answer:
lesantik [10]3 years ago
8 0

Answer:

(3) Gabbro

Explanation:

Gabbro is a  dark-colored, coarse-grained and intrusive igneous rock. Generally, this type of rock is having dark green or black color. The main composition of this type of rock is augite and plagioclase minerals.

The approximate composition of Gabbro rock given as

1 .25% plagioclase feldspar  

2.5% amphibole

3.10% olivine

5460% pyroxene

Therefore the answer will be (3).

(3) Gabbro

You might be interested in
Seth and Diana were asked to be the leaders for a game of tag during recess at school. Seth and Diana can ensure that all intere
grandymaker [24]

Answer:

B

Explanation:

did this yesterday with my friend

3 0
2 years ago
Radio waves of frequency 1.667 GHzGHz arrive at two telescopes that are connected by a computer to perform interferometry. One p
SVETLANKA909090 [29]

Explanation:

The frequency of radio waves is 1.667 GHz

One portion of the same wave front travels 1.260 mm farther than the other before the two signals are combined.

There are two conditions for interference either constructive or destructive.

For constructive interference , the path difference is n times of wavelength and for destructive interference, the path difference is (n+1/2) times of wavelength

We can find wavelength in this case as follows :

\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{1.667\times 10^9}\\\\\lambda=0.1799\ m

If we divide path difference by wavelength,

\dfrac{\delta}{\lambda} =\dfrac{1.26}{0.1799}\\\\\dfrac{\delta}{\lambda} =7\\\\\delta =7\lambda

It means that the path difference is 7 times of the wavelength. it means the two waves combine constructively and the value of m for the path difference between the two signals is 7.

5 0
3 years ago
un astronauta cuya masa es 80kg permanece inmovil en el espacio exterior, al activar la unidad propulsora que lleva en la espald
beks73 [17]

Answer:

Explanation:

80(0) = 2(15) + (80-2)v

v = - 0.38 m/s

5 0
2 years ago
Please help asap
posledela

Answer:

A

Explanation:

the object's mass determines the speed of the object and its kinetic energy

4 0
2 years ago
Read 2 more answers
A 7.00 g bullet, when fired from a gun into a 1.00 kg block of wood held in a vise, penetrates the block to a depth of 8.00 cm b
Sauron [17]

Answer:

Explanation:

ooooooooooooooo

5 0
2 years ago
Other questions:
  • The Egyptians and Greek shared which belief about preparing for important dreams
    5·2 answers
  • The rate at which an object moves
    13·2 answers
  • What is mercury barometer​
    13·1 answer
  • Which of the following occurs in meiosis that does not occur in mitosis
    7·1 answer
  • Your neighbor Paul has rented a truck with a loading ramp. The ramp is tilted upward at 35 ∘,and Paul is pulling a large crate u
    13·1 answer
  • An astronaut on the moon throws a baseball upward. the astronaut is 6ft, 6 in. tall and the initial velocity of the ball is 30 f
    14·2 answers
  • You compress a spring by a distance of 0.2 m. The spring has a spring constant of 37 N/m. When you release the spring, it snaps
    8·2 answers
  • What energy does a galloping horse and a speeding bullet represent
    12·2 answers
  • The dial of a scale looks like this: 00.0kg. A physicist placed a spring on it. The dial read 00.6kg. He then placed a metal cha
    11·1 answer
  • If a problem says an object has a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!