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
Mrrafil [7]
3 years ago
12

A) Calculate the pressure of water at the bottom of a well if the depth

Physics
1 answer:
Molodets [167]3 years ago
7 0

Answer: 98000pa

Explanation:Given,

Depth(h)=10m

gravity(g)=9.8m/s

density(δ)=1000kg/m^3

we know,

P=hdg

P=10*1000*9.8

P=98000pa

You might be interested in
At the local playground, a 21-kg child sits on the right end of a horizontal teeter-totter, 1.8 m from the pivot point. On the l
Ksju [112]

Answer:

By convention a negative torque leads to clockwise rotation and a positive torque leads to counterclockwise rotation.

here weight of the child =21kgx9.8m/s2 = 205.8N

the torque exerted by the child Tc = - (1.8)(205.8) = -370.44N-m ,negative sign is inserted because this torque is clockwise and is therefore negative by convention.

torque exerted by adult Ta = 3(151) = 453N , counterclockwise torque.

net torque Tnet = -370.44+453 =82.56N , which is positive means counterclockwise rotation.

b) Ta = 2.5x151 = 377.5N-m

Tnet = -370.44+377.5 = 7.06N-m , positive ,counterclockwise rotation.

c)Ta = 2x151 = 302N-m

Tnet = -370.44+302 = -68.44N-m, negative,clockwise rotation.

5 0
3 years ago
A squirrel drops an acorn onto the head of an unsuspecting dog. The acorn falls 4.0\,\text m4.0m4, point, 0, start text, m, end
kirill [66]

Answer:

0.903 seconds

Explanation:

To find how many seconds the acorn fall, we can use the formula for distance travelled with constant acceleration:

D = Vo*t + a*t^2/2,

where D is the distance travelled, Vo is the inicial speed, t is the time and a is the acceleration.

In our problem:

Vo = 0,

a = g = 9.81 m/s2,

D = 4 meters.

So, we can solve the equation to find the time:

4 = 0*t +9.81*t^2/2

4.905*t^2 = 4

t^2 = 4/4.905 = 0.8155

t =   0.903 seconds

8 0
3 years ago
During a drive by golfer Tiger Woods, the angular velocity of his club is zero at the top of his backswing and 30 rad/s at the b
ddd [48]

Explanation:

Below is an attachment containing the solution

5 0
3 years ago
Which diagram represents deposition?
Vera_Pavlovna [14]

Your answer will be gas

3 0
3 years ago
Why is it important to study electromagnetic waves?
labwork [276]
The study of EM is essential to understanding the properties of light, its propagation through tissue, scattering and absorption effects, and changes in the state of polarization. ... Since light travels much faster than sound, detection of the reflected EM radiation is performed with interferometry.
3 0
3 years ago
Other questions:
  • A 7.91g bullet is fired into a 1.52-kg ballistic pendulum initially at rest and becomes embedded in it. The pendulum subsequentl
    6·1 answer
  • Which of the following is a benefit of globalization?
    10·2 answers
  • In Dante Controller’s Clock Status tab, you see reports of more than one clock master. The Dante Controller Log also shows devic
    9·1 answer
  • An electric buzzer is activated, then sealed inside a glass chamber. When all of the air is pumped out of the chamber, how is th
    12·1 answer
  • What objects did Archimedes use to test the density of the gold crown? How Can a modern investigator identify the elements in pa
    6·1 answer
  • What must gymnasts begin to train at a very early age
    8·1 answer
  • Suppose an astronaut were to visit a planet where the force of gravity is half that of Earth. His mass on that planet would be:
    7·1 answer
  • Which is an example of radiation?
    13·2 answers
  • Acceleration of a body is 10m/s² , what does it mean?​
    11·2 answers
  • Một vật được ném lên trên theo phương thẳng đứng. Người quan sát
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!