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
olya-2409 [2.1K]
3 years ago
7

Where does the name "Black Hole" get it's name?

Physics
2 answers:
jenyasd209 [6]3 years ago
8 0

nothing escapes them not even light therefore they are (dark) and  we see them be literally black holes
Vikentia [17]3 years ago
4 0
The "Black Hole" gets its name from the astronomical amount of gravitational force created by the black hole. This gravitational force is so great that even light cannot escape it, hence, it is completely black
You might be interested in
Select the situation for which the torque is the smallest.
alina1380 [7]

Answer:

e. The torque is the same for all cases.

Explanation:

The formula for torque is:

τ = Fr

where,

τ = Torque

F = Force = Weight (in this case) = mg

r = perpendicular distance between force an axis of rotation

Therefore,

τ = mgr

a)

Here,

m = 200 kg

r = 2.5 m

Therefore,

τ = (200 kg)(9.8 m/s²)(2.5 m)

<u>τ = 4900 N.m</u>

<u></u>

b)

Here,

m = 20 kg

r = 25 m

Therefore,

τ = (20 kg)(9.8 m/s²)(25 m)

<u>τ = 4900 N.m</u>

<u></u>

c)

Here,

m = 8 kg

r = 62.5 m

Therefore,

τ = (8 kg)(9.8 m/s²)(62.5 m)

<u>τ = 4900 N.m</u>

<u></u>

Hence, the correct answer will be:

<u>e. The torque is the same for all cases.</u>

6 0
3 years ago
I need help to figure out how to solve this problem and solve it!!!
wariber [46]

well it looks like the walk at a constant increasing pace then at a constant pace then increaseing pace then constant pace then they slow down then walk at a constant pace then walk at a constantly increasing pace

plz rate me  brainliest

4 0
3 years ago
Read 2 more answers
Một dây nhôm dài 10 m khi ở 25 độ C. Biết khi nhiệt độ tăng thêm 1 độ C thì chiều dài 1m dây nhôm sẽ tăng thêm 0,024mm.
kondor19780726 [428]

Answer:

??????? what language is this. um A then

5 0
3 years ago
Is a switch essential for a circuit to operate
antiseptic1488 [7]

Answer:

yes it is essential

Explanation:

a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit; controls current flow into a circuit

4 0
3 years ago
Now, look at a general function f(x), as shown in (Figure 4) .
Nataliya [291]
We can't look at Figure 4. We don't know where a and b are. We can't see the blue shaded area. We don't know what our method above was. We can't see the green skinny rectangle.
7 0
3 years ago
Other questions:
  • Anyone tell me what is the physics​
    10·1 answer
  • How much work is accplished when a force of 250 n pushes a box accross the floor for a distance of 50 meters
    8·1 answer
  • In a cell protein synthesis is the primary function of
    9·1 answer
  • At a pressure of one billionth (10–9) of atmospheric pressure, there are about 2.7 × 1010 molecules in one cubic centimeter of a
    6·1 answer
  • How to work out Initial volume Boyle’s law
    11·1 answer
  • If the amplitude of the resultant wave is twice as great as the amplitude of either component wave, and this wave exhibits reinf
    10·2 answers
  • I need help with these questions please help <br><br><br> 25 points
    5·1 answer
  • 6. Suppose the resistance of your body between your right and left hands is 500,000 N. What
    14·1 answer
  • A child looked at
    15·1 answer
  • You are traveling 70 mph (31.3 m/s) and slam on the brakes to avoid hitting another car. How far do you travel if it takes you 8
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!