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
DochEvi [55]
3 years ago
5

But how can the only number that is less than 4 or equal to 4 be 8​

Physics
1 answer:
Assoli18 [71]3 years ago
4 0

However, consequently and moreover, we need to know everything before "but".

You might be interested in
If a heat engine takes in 4565 kJ and gives up 2955 kJ during one cycle, what is the engine’s efficiency?
vodomira [7]

The engine efficiency is 64.73 %

<u>Explanation:</u>

Given data

To find the engine’s efficiency we have the formula,

Energy input- 4565 KJ

Energy output - 2955KJ

Efficiency= energy output/ energy input ×100%

 =2955/4565

  =0.6473 ×100

η               =64.73 %

The engine efficiency is 64.73 %

5 0
3 years ago
A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point 15.6
VladimirAG [237]

To solve this problem it is necessary to take into account the kinematic equations of motion and the change that exists in the volume flow.

By definition the change in speed is given by

v_f^2-v_i^2 = 2ax

Where,

x= distance

v_f =final velocity

v_i =initial velocity

a = acceleration

On the other hand we know that the flow of a fluid is given by

\dot{V} = Av

Where,

A = Area

v = Velocity

PART A )

Applying this equation to the previously given values we have to

v_f^2-v_i^2 = 2ax

v_f^2-0 = 2*(9.8)(15.6)

v_f^2=305.76

v_f = 17.48

Therefore the velocity of the water leaving the hole is 17.48m/s

PART B )

In the case of the hole we take the area of a circle, therefore replacing in the flow equation we have to,

\dot{V} = \pi r^2 v

r = \sqrt{\frac{\dot{V}}{\pi v}}

r = \sqrt{\frac{3*10^{-3}*\frac{1}{60}}{\pi (17.48)}

r = \sqrt{9.10*10^{-7}}

r = 0.54*10^{-4}

The diameter is 2 times the radius, then is 1.91*10^{-3}m or 1.91mm

<em>Note: The rate flow was converted from minutes to seconds.</em>

8 0
3 years ago
when an electron move from a lower energy level to a higher energy level, the atom the atom does what
gulaghasi [49]
The atom absorbs the energy
7 0
4 years ago
two horses pull against a rope with forces of 100 newtons in opposite directions. this is an example of
statuscvo [17]
It is an example of balanced force.


hope this helps. good luck 
4 0
3 years ago
Read 2 more answers
In what way is Speed related to Kinetic Energy?
Papessa [141]

Answer:

Explanation:

In order to find kinetic energy, you need information about the velocity. Speed is the magnitude of the velocity.

Kinetic energy is 1/2mv^2

m being mass

v being velocity

8 0
3 years ago
Other questions:
  • What would be a clean energy replacement for the dam’s hydroelectric power?
    5·1 answer
  • What occurs when light changes direction after colliding with particles of matter
    8·1 answer
  • An archer shoots an arrow with a velocity of 45.0m/s at an angle of 50.0degrees with the horizontal.An assistant standing on the
    5·1 answer
  • Shown here are astronomical objects located at different distances from Earth. Rank the objects based on their distances from Ea
    9·1 answer
  • What does KE mean? *100 pts*
    12·2 answers
  • Two bar magnets are labeled A and B. The ends of each magnet are numbered 1 or 2, but the poles are not labeled. When A1 is brou
    11·1 answer
  • Match the following ERA’s Question 4
    10·1 answer
  • You are standing 5 m from a loud machine. You move 10 m from the machine to help reduce the intensity of the sound. Calculate th
    15·1 answer
  • If the slowest instruction in the SCA executes in 12.5 ns, then what is maximum system clock frequency in MHz
    5·1 answer
  • A police officer uses a radar gun to determine the speed of a car. A specialized radar gun uses ultraviolet light to determine t
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!