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
Airida [17]
3 years ago
12

What is escape velocity ​

Physics
1 answer:
DanielleElmas [232]3 years ago
8 0
Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion. For example, a spacecraft leaving the surface of Earth needs to be going 7 miles per second, or nearly 25,000 miles per hour to leave without falling back to the surface or falling into orbit.
You might be interested in
What is the Ozone layer?
yaroslaw [1]
"<span>a layer in the earth's stratosphere at an altitude of about 6.2 miles (10 km) containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun."

Hope this helps!
</span>
4 0
3 years ago
Read 2 more answers
An object on Earth weighs 150 N. What is its mass?
Alex777 [14]

Answer:

\tt \: mass \:  =  \frac{weight}{acceleration \: due \: to \: gravity}

\longrightarrow \tt \:  \frac{150}{10}

\longrightarrow \boxed{ \tt{15 \: kg}}

  • Our final answer is 15 kg .

----------- HappY LearninG<3 ------------

3 0
2 years ago
A convection cell is BEST described as ___.
Helga [31]
D, a loop of moving air
6 0
3 years ago
Cold butter placed on hot corn melts because of convection.<br> agree <br> disagree<br> it depends
frozen [14]

Explanation:

Cold butter placed on hot corn melts because of convection. Butter placed on hot corn melts because it touches the hot corn. Most of the heat is transferred through conduction

7 0
3 years ago
An object at rest cannot remain at rest unless which of the following holds?View Available Hint(s)An object at rest cannot remai
Leni [432]

Answer:

True The net force must be zero for the acceleration to be zero

Explanation:

In order to analyze the statements of this problem we propose your solution.

First let's look at Newton's first, which stable that every object is at rest or with constant speed unless something takes it out of this state (acceleration)

Now let's look at the second postulate, which says that force is related to the product of the mass of a body and its acceleration.

As a result of these two laws, for a body is a constant velocity the summation force on it must be zero.

Now we can analyze the statements given.

True The net force must be zero for the acceleration to be zero

False. If the force is different from zero, there is acceleration that changes the speeds

False. There may be forces, but the sum of them must be zero

False. If a force acts, the acceleration is different from zero and the speed changes

5 0
3 years ago
Other questions:
  • The thermal energy in a heat engine is used to move a piston. Which best describes why this is possible?
    10·2 answers
  • Assuming the ball's initial velocity was 51 ∘ above the horizontal and ignoring air resistance, what did the initial speed of th
    9·1 answer
  • Blank is how high or low you think a sound is
    9·2 answers
  • Why are Murcury, venus, earth and mars called the "terrestrial" planets?
    6·1 answer
  • Without effective assessment methods, teachers have no documented proof of childrens specific ____ and _____.
    9·1 answer
  • A lemming running 2.22m/s runs off a horizontal cliff. It lands in the water 7.45m from the base of the cliff. How much time was
    11·1 answer
  • Maxwell’s theory of Electromagnetism in 1865 was the first "unified field theory" _________ no further theory has united the ele
    14·1 answer
  • A spring is hanging from the ceiling. Attaching a 500 g physics book to the spring causes it to stretch 20 cm in order to come t
    10·1 answer
  • Jack is playing with a Newton's cradle. As he lifts one ball to position A and drops it, it impacts the other balls at position
    11·1 answer
  • If y gets smaller as x gets bigger, x and y have a?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!