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
VikaD [51]
3 years ago
6

A hydraulic press must exert a force of 20,000N to crush a wrecked car into a convienent block. If the output piston is eight ti

mes the area of the input piston, what input force is required?
Physics
1 answer:
Brilliant_brown [7]3 years ago
3 0

Answer:

Explanation:

We shall apply Pascal's law here to find the solution .According to this law if we apply a pressure on a particular area over an in-compressible liquid it gets transferred to other point inside or over the surface of the liquid without getting diminished.

in the present case force is applied on a car to crush it which is enormous in magnitude. This force is 20000 N, which is also called output force  Let the surface on which car is placed be A₂. We apply input force F₁ at other point over a small area be it A₁.

According to Pascal law ,

20000/ A₂ = F₁ / A₁

F₁ = 20000 X (A₁ / A₂)

= 20000 X 1/8

= 2500 N.

You might be interested in
if a torque of 55.0 N/m is required and the largest force that can be exerted by you is 135 N what is th e length of the lever a
Whitepunk [10]

Answer:

r=0.41m

Explanation:

Torque is defined as the cross product between the position vector ( the lever arm vector connecting the origin to the point of force application) and the force vector.

\tau=r\times F

Due to the definition of cross product, the magnitude of the torque is given by:

\tau=rFsin\theta

Where \theta is the angle between the force and lever arm vectors. So, the length of the lever arm (r) is minimun when sin\theta is equal to one, solving for r:

r=\frac{\tau}{F}\\r=\frac{55\frac{N}{m}}{135N}\\r=0.41m

7 0
2 years ago
A certain type of bird lives in two regions of a state. The distribution of weight for birds of this type in the northern region
Annette [7]

Answer: (a) Z-score are 1 and -1.2 for northern and southern regions, respectively.

Explanation: <u>Z-score</u> is how many standard deviations a data is from the population mean or how far a data point is from the mean.

The z-score is calculated by the following:

z=\frac{x-\mu}{\sigma}

where

x is the data point

μ is population mean

σ is standard deviation

For the <u>northern</u> <u>region</u> birds:

μ = 10, σ = 3, x = 13

z=\frac{13-10}{3}

z = 1

The z-score for birds living in the northern region is 1, which means it is 1 standard deviation <em>above the mean</em>.

For the southern region:

μ = 16, σ = 2.5, x = 13

z=\frac{13-16}{2.5}

z = -1.2

The z-score for southern living birds is -1.2, meaning it is 1.2 standard deviations <em>below the mean</em>.

6 0
3 years ago
Please help with part b. I need to find the speed.
Elena-2011 [213]
It would be 2 to 4 seconds (:
7 0
3 years ago
The mass of a large car is 1000 kg. How much force would be required to accelerate the car at a rate of 3msec2
pogonyaev

Answer:

3000 N

Explanation:

We have,

• Mass, m = 1000 kg

• Acceleration, a = 3 m/s²

We have to find force required, F.

\longrightarrow F = ma

\longrightarrow F = 1000 × 3 N

\longrightarrow F = 3000 N (Answer)

8 0
2 years ago
What season would it be for someone living near locaton 3 on the Earth?
Naya [18.7K]
Spring would be for someone living near 3 on earth
4 0
2 years ago
Read 2 more answers
Other questions:
  • I NEED AN ANSWER ASAP!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!!!!! A 1.5m wire carries a 9 A current when a potential difference of
    6·1 answer
  • What committee decides which bills move to the House floor for debate and sets the terms for the debate?
    12·1 answer
  • If a projectile fired beneath the water, straight up, breaks through the surface at a speed of 13m/s, to what height above the w
    13·1 answer
  • German philosopher and physicist Gustav Theodor Fechner founded psychophysics.
    9·2 answers
  • A ball is dropped and falls with an acceleration of 9.8m/s2 downward. it hit the ground with a velocity of 49 m/s downward. how
    14·1 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
  • What is the characteristic that allows an object to have kinetic energy?
    13·1 answer
  • 2. A hammer hits a nail with a force of 50 N into some wood. The area of the point of the nail is 0.02 cm2. What is the pressure
    6·2 answers
  • Marvin lifts a box over his head. The work done on the box is- -Negative work -No work -Positive work
    7·1 answer
  • An 80-kg football player travels to the right at 8 m/s and a 120-kg player on the opposite team travels to the left at 4.0 m/s.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!