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
kherson [118]
3 years ago
6

A cube has a surface area of 54 cm squared. what is its volume

Physics
1 answer:
vitfil [10]3 years ago
6 0
Area=54
l2=54
l =3√6

volume=(3√6)3
=396.81
You might be interested in
The local high school is installing new bleachers at the stadium and must also add handrails to meet code. The students know the
Advocard [28]

Answer:

The handrails must be approximately 10.63 meters long

Explanation:

The given parameters are;

The height of the bleachers, h = 8 m

The depth of the bleachers, d = 7 m

The length of the hand rails to go along the bleachers from bottom to top is given by Pythagoras' Theorem as follows;

The length of the hand rail = √(d² + h²)

∴ The length of the hand rail = √(7² + 8²) = √113 ≈ 10.63

In order for the handrails to go along the bleachers from top to bottom, they must be approximately 10.63 meters long.

5 0
3 years ago
An object at rest does not _____ and an object in motion does not _____, unless an _____ force acts upon it
mel-nik [20]

Answer:

An object at rest does not move and an object in motion does not change its velocity, unless an external force acts upon it

Explanation:

This statement is also known as Newton's first law, or law of  inertia.

It states that the state of motion of an object can be changed only if there is an external force (different from zero) acting on it: therefore

- If an object is at rest, it will remain at rest if there is no force acting on it

- If an object is moving, it will continue moving at constant velocity if there is no force acting on it

This phenomenon can be also understood by looking at Newton's second law:

F = ma

where

F is the net force on an object

m is the mass

a is the acceleration

If the net force is zero, F = 0, the acceleration of the object is also zero, a = 0: therefore, the velocity of the object does not change, and it will continue moving at the same velocity (which can be zero, if the object was at rest).

5 0
3 years ago
A 20 newton force moves an object southeast. What two properties of force have been described?
Galina-37 [17]

Answer:

The answer is C

Explanation:

Force is a vector quantity so it has both magnitude and direction. The question shows 20N act as magnitude and Southeast act as direction.

7 0
3 years ago
Two carts undergo an inelastic collision where they stick together. Cart A has an initial velocity v0, and the second cart B is
dimulka [17.4K]

Answer:

Explanation:

Initial kinetic energy of the system = 1/2 mA v0²

If Vf be the final velocity of both the carts

applying conservation of momentum

final velocity

Vf = mAvo / ( mA +mB)

kinetic energy ( final ) =  1/2 (mA +mB)mA²vo² /  ( mA +mB)²

= mA²vo²  / 2( mA +mB)

Given 1/2 mA v0²  / mA²vo²  / 2( mA +mB) = 6

mA v0² x ( mA +mB) / mA²vo² = 6

( mA +mB) / mA = 6

mA + mB = 6 mA

5 mA = mB

mB / mA = 5 .

3 0
3 years ago
which of the following contraceptives generally results from choosing to be sexually active as a teen
valentina_108 [34]
I would say birth control and condoms
8 0
3 years ago
Read 2 more answers
Other questions:
  • As an object falls freely toward the earth, the momentum of the object-earth system (1) decreases (2) increases (3) remains the
    15·1 answer
  • Imagine two billiard balls on a pool table. Ball A has a mass of 2 kilograms and ball
    14·2 answers
  • A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly
    11·1 answer
  • Which descriptor applies to the circuit?<br><br> A- on<br> B- closed<br> C- incomplete <br> D- open
    9·2 answers
  • How can you show positive body languages with your mouth
    7·1 answer
  • As you move from left to right across a period the number of valances electrons
    8·2 answers
  • a fast humvee drove from desert a to desert b. for the 12 hours, it travelled at an speed of 185 km/h. for the next 13 hours, it
    15·1 answer
  • Which statement is true about the circuit diagram below?
    5·1 answer
  • Sublimation is used to describe
    7·2 answers
  • A 1.00 -kg object slides to the right on a surface having a coefficient of kinetic friction 0.250 (Fig. P8.62a). The object has
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!