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
aev [14]
3 years ago
14

Which of the following words BEST describes scientists’ current knowledge about the universe?

Physics
1 answer:
Vilka [71]3 years ago
4 0

Answer:

your answer is changing

Explanation:

You might be interested in
HELP!! WILL MARK BRAINLIEST!!!!!
krek1111 [17]

Answer:

Create

Broken

Explanation:

Bond formation or creation requires the use of energy. Energy is used during bond formation between chemical species. The energy is required for the reaction to occur.

  • When bonds are broken, energy is released
  • Bond breaking process is a procedure that releases energy.
  • This energy makes them able to react.
5 0
3 years ago
What happens when velocity and acceleration are at right angles to each other
photoshop1234 [79]
You get circular motion, where the acceleration is pointing towards the center of the circle, as long as they are constant, and not fluctuating.
7 0
3 years ago
point) A circular swimming pool has a diameter of 12 m. The circular side of the pool is 3 m high, and the depth of the water is
Sergio [31]

Answer:

(a) 86.65 J

(b) 149.65 J

Solution:

As per the question:

Diameter of the pool, d = 12 m

⇒ Radius of the pool, r = 6 m

Height of the pool, H = 3 m

Depth of the pool, D = 2.5 m

Density of water, \rho_{w} = 1000\ kg//m^{3}

Acceleration due to gravity, g = 9.8\ m/s^{2}

Now,

(a) Work done in pumping all the water:

Average height of the pool, h = \frac{H + D}{2}

h = \frac{3 + 2.5}{2} = 2.75\ m

Volume of water in the pool, V = \pi r^{2}h = \pi \times 6^{2}\times 2.75 = 311.02\ m^{3}

Mass of water, m_{w} = \frac{\rho_{w}}{V}

m_{w} = \frac{1000}{311.02} = 3.215\ kg

Work done is given by the potential energy of the water as:

W = m_{w}gh = 3.215\times 9.8\times 2.75 = 86.65\ J

(b) Work done to pump all the water through an outlet of 2 m:

Now,

Height, h = 2.75 + 2 = 4.75

Work done,W = m_{w}gh = 3.215\times 9.8\times 4.75 = 149.65\ J

7 0
2 years ago
The combination of all forces that act on an object are (2 points)
qaws [65]

Answer:

A) The net force

Explanation:

If two forces of equal strength act on an object in opposite directions, the forces will cancel, resulting in a net force of zero and no movement.

5 0
3 years ago
A ship's propeller of diameter 3 m makes 10.6 revolutions in 30s. What is the angular velocity of the propeller?
ycow [4]

Answer:

The angular velocity of the propeller is 2.22 rad/s.

Explanation:

The angular velocity (ω) of the propeller is:  

\omega = \frac{\Delta \theta}{\Delta t}                              

Where:

θ: is the angular displacement = 10.6 revolutions

t: is the time = 30 s

\omega = \frac{\Delta \theta}{\Delta t} = \frac{10.6 rev*\frac{2\pi rad}{1 rev}}{30 s} = 2.22 rad/s

Therefore, the angular velocity of the propeller is 2.22 rad/s.

I hope it helps you!

5 0
3 years ago
Other questions:
  • In the lens equation, the variable do represents the distance of the object from the ________.
    11·2 answers
  • The siren on an ambulance is emitting a sound whose frequency is 2450 Hz. The speed of sound is 343 m/s. If the ambulance is sta
    12·2 answers
  • Plz I need help !!!!!!!
    7·2 answers
  • A capacitor is connected to an ac generator that has a frequency of 3.0 kHz and produces a rms voltage of 2.0 V. The rms current
    14·1 answer
  • The voltage in a battery is 9 volts. The resistance is 3 ohms.<br><br> What is the current?
    9·2 answers
  • When observed from Earth, the wavelengths of light emitted by a star are shifted toward the red end of the
    7·1 answer
  • Pentru aceleasi corp,pe pamant sau pe luna,difera masa greutatea corpului?
    14·2 answers
  • 1.14 Which of the following is an example of a force without touching? A A boy pushing a trolley. B The mass of a car. C с A mag
    13·1 answer
  • 7. How much time does it take a person to walk 8
    13·1 answer
  • This graph shows the decomposition of hydrogen peroxide as it is exposed to air. Marty claims that the graph shows that the reac
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!