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
bija089 [108]
3 years ago
12

Which of the following materials is brittle? wood metal ceramic plastic

Physics
1 answer:
Ira Lisetskai [31]3 years ago
5 0
Ceramic is the most brittle of the materials you have specified. 

You might be interested in
an object is acted on by a drag force with a magnitude that is proportional to the speed. the object accelerates downward at 3.0
Nutka1998 [239]

The terminal speed of the object falling down is 66.67 m/s.

The terminal speed acquired by the body when,

Weight of the body = Drag force of the body

It is given,

Drag force is directly proportional to the speed,

So,

F = CV

Where F is drag force,

V is the speed,

C is the constant,

So, it can be written as C = F/V.

The weight of the body = mg

The weight of the body = 10m

M is the mass and g is the acceleration due to gravity,

The drag force when the speed is 20m/s.

Drag force = ma

a is the acceleration during the drag force which is given to be 3m/s²,

Drag force = 3m

Now we can write,

F₁/V₁ = F₂/V₂

F₁ is the drag force at 20m/s speed.

F₂ is the weight of the body and V₂ is the terminal speed,

Now, it can be written,

3m/20 = 10m/V₂

V₂ = 66.67 m/s.

So, the terminal speed is 66.67m/s.

To know more about terminal speed, visit,

brainly.com/question/14605362

#SPJ4

7 0
1 year ago
What property of light shown in the picture?
kupik [55]

Answer:

Explanation:

Reflection

8 0
2 years ago
Read 2 more answers
A square-based shipping crate is being designed that must contain a volume of 16 ft3 . The material that is used for the base an
Vlada [557]

Answer:

Explanation:

Given

volume V=16 ft^3

Suppose base is square with side L

height of crate is h

Volume V=L^2\times h

16=L^2\times h

Cost of top and bottom area c_1=3L^2

Cost of Side area c_2=4Lh\times 2=8Lh=8L\times \frac{16}{L^2}=\frac{128}{L}

Total Cost C=c_1+c_2

Total Cost C=3L^2+\frac{128}{L}

Differentiate C w.r.t Length

\frac{dC}{dL}=6L-\frac{128}{L^2}

L^3=\frac{128}{6}

L=2.75 ft

h=\frac{16}{2.75^2}=11.46 ft

Dimensions are L\times L\times h=2.75\times 2.75\times 11.46    

6 0
3 years ago
The diagram shows how an image is produced by a plane mirror.
nadezda [96]

I had this question on a quiz, it was X.

3 0
3 years ago
Read 2 more answers
A weight is hung from the ceiling of an elevator by a massless string. Under which circumstances will the tension in the cord be
Oduvanchick [21]
When the elevator is going up (assuming the elevator is acceleration)

When the elevator is accelerating downwards, the total gravitational force would be larger.

If the elevator is accelerating upwards, then the gravitation force would be smaller, thus the tension in the string would be smaller.
4 0
2 years ago
Other questions:
  • What kinds of space and matter can light travel through
    5·2 answers
  • What happens to the boiling point of water when the pressure is increased?
    7·1 answer
  • A physical change occurs when a material changes shape or size but the composition of the material does not change. True or Fals
    10·1 answer
  • A 420-turn circular coil with an area of 0.0650 m2 is mounted on a rotating frame, which turns at a rate of 22.3 rad/s in the pr
    5·1 answer
  • A 1000kg truck traveling at 108km/h skids 10m before it stops. What is the magnitude of the frictional force acting on the car?
    8·1 answer
  • A hollow, transparent plastic tube is placed on a horizontal surface. A wire carrying a current is wound once around the tube to
    5·1 answer
  • Which of the following correctly arranges the planets by the size of their diameter in increasing order?
    7·2 answers
  • If an object's velocity changes from 25 meters per second to
    5·2 answers
  • How much work is done on 10.0 c of charge to move it through a potential diffrence of 9.0 v in 10.0s
    6·1 answer
  • What is Newton's third law ?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!