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
monitta
2 years ago
8

A ______ is a massive object with gravitational effect so strong that even light cannot escape it. A)black hole

Physics
2 answers:
ruslelena [56]2 years ago
4 0
A. Black hole is the answer


Dovator [93]2 years ago
4 0
The answer is A) Black Hole

You might be interested in
2. A portion of the body receives 0.15 mGy from radiation with a quality factor Q = 6 and 0.22 mGy from radiation with Q = 10. (
DiKsa [7]

Answer with Explanation:

We are given that

D_1=0.15mGy

D_2=0.22mGy

Q_1=6

Q_2=10

a.We have to find the total dose

Total dose=D=D_1+D_2

Using the formula then, we get

D=0.15+0.22

D=0.37mGy

b.We have to find the total dose equivalent

Total dose equivalent=H=D_1Q_1+D_2Q_2

Using the formula

H=0.15(6)+0.22(10)

H=3.1mSv

7 0
2 years ago
A long. 1.0 kg rope hangs from a support that breaks, causing the rope to fall, if the pull exceeds 43 N. A student team has bui
raketka [301]

Answer:

6.8 m/s2

Explanation:

Let g = 9.8 m/s2. The total weight of both the rope and the mouse-robot is

W = Mg + mg = 1*9.8 + 2*9.8 = 29.4 N

For the rope to fails, the robot must act a force on the rope with an additional magnitude of 43 - 29.4 = 13.6 N. This force is generated by the robot itself when it's pulling itself up at an acceleration of

a = F/m = 13.6 / 2 = 6.8 m/s2

So the minimum magnitude of the acceleration would be 6.8 m/s2 for the rope to fail

8 0
3 years ago
Figure 3 shows a bicycle of mass 15 kg resting in a vertical position, with the front and back
Vinil7 [7]

Explanation:

There are three forces on the bicycle:

Reaction force Rp pushing up at P,

Reaction force Rq pushing up at Q,

Weight force mg pulling down at O.

There are four equations you can write: sum of the forces in the y direction, sum of the moments at P, sum of the moments at Q, and sum of the moments at O.

Sum of the forces in the y direction:

Rp + Rq − (15)(9.8) = 0

Rp + Rq − 147 = 0

Sum of the moments at P:

(15)(9.8)(0.30) − Rq(1) = 0

44.1 − Rq = 0

Sum of the moments at Q:

Rp(1) − (15)(9.8)(0.70) = 0

Rp − 102.9 = 0

Sum of the moments at O:

Rp(0.30) − Rq(0.70) = 0

0.3 Rp − 0.7 Rq = 0

Any combination of these equations will work.

3 0
2 years ago
Help me besties ok thx
Pachacha [2.7K]

Answer:

1 \\ 0.5 \times 500 \times 20 \times 20 \\  \ 2 \\ 0.5 \times 0.6 \times 100 \times 100 \\ 3 \\ 1000 \times 0.5 \times 10 \times 10 \\ 1000 \times 0.5 \times 20 \times 20 \\ 1000 \times 0.5 \times 30 \times 30 \\ 4 \\ 0.5 \times 40000 \times 30 \times 30 \\ 5 \\  \sqrt{ \frac{2}{0.1 \times 0.5} }

7 0
2 years ago
What makes a force a vector quantity
klasskru [66]

Answer:

A vector quantity is a quantity that has both magnitude and direction.

Explanation:

3 0
3 years ago
Other questions:
  • Compare the force of air resistance and the force of gravity on an object falling at its terminal velocity.
    8·1 answer
  • How many grams of co2 are in 3 moles of the compound
    6·2 answers
  • A large balloon of mass 210 kg is filled with helium gas until its volume is 329 m3. Assume the density of air is 1.29 kg/m3 and
    8·1 answer
  • Which statements accurately describe density? Check all that apply.
    13·1 answer
  • Identifying Mechanical Energy
    9·2 answers
  • A cyclotron operates with a given magnetic field and at a given frequency. If R denotes the radius of the final orbit, the final
    6·1 answer
  • A group of big city tenants were upset about rising rent for their apartments, and decided to play a prank on the Building Manag
    11·1 answer
  • Explain, step by step, how to calculate the amount of current (I) that will go through the resistor in this circuit
    13·2 answers
  • How does freezing and evaporation affect salinity?
    9·1 answer
  • How many sides does a dodecahedron have?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!