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
Alik [6]
4 years ago
5

An igneous rocks color is mainly determined by its

Physics
1 answer:
melomori [17]4 years ago
4 0
An ignious rock's color is mainly determined by its silica content
You might be interested in
two flat mirrors are connected to each other such that they make an angle of ψ. a laser enters the system and first reflects off
Firdavs [7]

The angle is 53.5 degrees.

What is a flat mirror?

A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence.

This ques have been solved in two steps:

Step 1:

given that;

Θ=107 degrees

from figure,

∠BAC=180-ψ-(90-φ)

∠BAC= 90-ψ-φ

∠AOC=180-2(ψ-φ)-2φ

∠AOC=180-2φ

Step 2: part(a)

writing an expression for the psi at point o:

Θ+180-2ψ=180

2ψ=Θ

ψ=Θ/2

above is the expression for ψ

Step 3: part(b)

The angle of ψ is,

ψ=Θ/2

ψ=107/2

ψ=53.5 degrees

Hence, the angle is 53.5 degrees.

To more know about flat mirrors and phi and psi angles the link is given below:

brainly.com/question/15970406?

#SPJ4

7 0
2 years ago
What is the speed of a car that travels 150km in 3.00 hrs?
Leto [7]
The answer is <span>50 km/hr. </span>
8 0
4 years ago
A web page designer creates an animation in which a dot on a computer screen has a position of r⃗ =[ 4.50 cm +( 2.90 cm/s2 )t2]i
VMariaS [17]

Answer:

V = (5.8cm/s)i, (4.7cm/s)j

Explanation:

Given :

r⃗ =[ 4.50 cm +( 2.90 cm/s2 )t2]i^+( 4.70 cm/s )tj^

To obtain the average velocity (V)

V = (r2 - r1) / (t2 - t1)

To obtain r1 and r2, substitute t1 = 0 and t2 = 2 respectively in the equation above

r1 = [ 4.50 cm +( 2.90 cm/s2 ) 0]i^+( 4.70 cm/s )0 j

r1 = 4.50 cm + 0 + 0 = (4.50cm)i + 0j

r2 = [ 4.50 cm +( 2.90 cm/s2 )2²]i^+( 4.70 cm/s )2 j

r2 = 4.50cm + (2.90 × 4)i + (4.70 × 2)j

r2 = (16.1cm)i + (9.4cm)j

V = [(16.1 - 4.50)i - (9.4 - 0)j] / 2 - 0

V = 11.6i / 2 ; 9.4j / 2

V = (5.8cm/s)i, (4.7cm/s)j

5 0
3 years ago
Im stuck on this question, please help. :)
Pie

Light travels in waves, and light travels at about 3.0x10^8 m/s. and you call that this the 'speed of light' so your answer possible could be

A. It travels at the speed of light.

I might be wrong so double check.

4 0
3 years ago
aliaa is skating down a ramp. the wheels on her skateboard have diameters of 60 \text{ mm}60 mm60, start text, space, m, m, end
GarryVolchara [31]

The total distance traveled by Aliaa using her skateboard for 20 revolution of the wheels is equal to 3770 millimeters.

<u>Given the following data:</u>

Diameter of skateboard = 60 mm.

Number of revolution = 20 revolutions.

Radius = diameter/2 = 60/2 = 30 mm.

<h3>What is distance?</h3>

Distance can be defined as the amount of ground covered (traveled) by a physical object over a specific period of time and speed, regardless of its direction, starting point or ending point.

For one revolution of the wheels, the distance traveled by Aliaa using her skateboard is given by:

Distance = 2πr

Distance = 2 × 3.142 × 30

Distance = 188.5 mm.

Therefore, the total distance traveled by Aliaa using her skateboard for 20 revolution of the wheels is given by:

Distance = 188.5 × 20

Distance = 3770 millimeters.

Read more on distance per revolutions here: brainly.com/question/10989073

#SPJ4

8 0
2 years ago
Other questions:
  • Air moves in and out of the lungs through a set of tubes that make up the airways.
    7·2 answers
  • A gas occupying a volume of 673.0 mL at a pressure of 0.894 atm is allowed to expand at constant temperature until its pressure
    6·1 answer
  • An ambulance drives by with a blaring siren.
    11·2 answers
  • Which value is equivalent to 178 centimeters?
    11·1 answer
  • ______ is the transfer of thermal energy from on object to another. *
    6·2 answers
  • The wave function for a particle must be normalizable because:________ a. the particle's angular momentum must be conserved. b.
    13·1 answer
  • A balloon is rubbed on someone's hair, then placed next to a stream of water. The balloon has an overall negative charge. The wa
    9·1 answer
  • A man is using a parachute to come down from an aircraft. Name the force which is
    11·1 answer
  • When is acceleration negative?
    7·1 answer
  • If the applied force is 60 N and the lower mass is 1.0 kg, what is the tension in the string?(frictionless surface)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!